Introduction Chapter

Main Heroes

Shane Gang

Eli Shane (voiced by Sam Vincent): Leader of the Shane Gang and Protector of the 99 Caverns. First son of the famous Will Shane. Older brother of Harley and Xantara Shane. Boyfriend of Trixie Sting. Favorite slug is an Infurnus named Burpy. He also possesses the magic of Aether as the Aether Elemental. He and Harley are also equipped with Shadow Talkers, which allow them to speak with the Shadow Clan.

Harley Shane (voiced by Tye Sheridan): Co-leader of the Shane Gang and Protector of the 99 Caverns. Second son of the famous Will Shane. Younger brother of Eli Shane and older brother of Xantara Shane. His love interest is Yu Jie Hanadera. Favorite slug is an Infurnus named Hestia. He is also a hybrid Darkbane. He also possesses the magic of Nether as the Nether Elemental. He and Eli are also equipped with Shadow Talkers, which allow them to speak with the Shadow Clan.

Trixie Sting (voiced by Shannon Chan-Kent): She always has a bullseye, but when it comes to dueling, she can also spot out details to help come up with a smart strategy for her team. She likes to film videos of her experiences on dealing with the villains of Slugterra and post them on the Slugnet. She's the girlfriend of Eli Shane. Favorite slug is a Tormato named Bluster.

Kord Zane (voiced by Andrew Francis): A Cave Troll and engineer of the team. He's the advanced field tester for the old Mecha Beast Forge before it was destroyed. He decided to take on the life of a slug slinger over the family business of digging tunnels because, according to him, slinging slugs is more fun than busting rocks. Favorite slug is a Rammstone named Bludgeon.

Pronto Geronimo (voiced by Lee Tockar): A Molenoid and tracker. A self-proclaimed hero of legends, Molenoid of many talents. But in reality, a funny, scaredy-mole who has a knack for annoying people. Favorite slug is a Flatulorhinkus named Stinky.

Vance Volt (voiced by Trevor Devall): A former Mecha Beast Racer. He was the 4-time Slug Run Champion before joining the Shane Gang. His Mecha Beast was completely overhauled after getting a sponsor with Dr. Blakk.

Mario Bravado (voiced by Matt Hill): The best Trickshot Slugslinger in all of Slugterra. He used to have his own TV show until an incident with Dr. Blakk caused him to quit slugslinging. He works part-time in his own pizza place with his girlfriend, Katie. His favorite slug is a Speedstinger named Ricochet.

Lash Jones (voiced by Tye Sheridan): The first youngest member. He's the adopted brother of Joshwa and boyfriend of Shimei. He used to work as a spy for Dr. Blakk with Joshwa until he redeemed himself and joined the Shane Gang.

Shimei (voiced by Yifei Liu): The second youngest member. She's the granddaughter of Shanai, the Unbeatable Master, and the girlfriend of Lash. She was training under her grandmother's tutelage, hosting the challenge for Eli and Harley. But after Dr. Blakk took Shanai's life, Shimei decided to join the Shane Gang.

Eliza Shane (voiced by Rose Byrne): The wife of Will Shane and the mother of Eli, Harley and Xantara. After her sons left for Slugterra, she lost her job and her parents passed away. She took up a blaster Will left for her and joined her sons down in Slugterra. After she gave birth to Xana, she elected to stay at the hideout to look after her and the many pets the Shane Gang collected over the months.

Watts (voiced by Lee Tockar): An Amphibanoid who was a former crewmate of Malvolio Drake. After helping Eli's AquaBeek, Beeker, he decided to end his pirate's life and join the Shane Gang as an act of redemption.

Dana Por (voiced by Maryke Hendrikse): Former thief and adopted daughter of the Shane family. She's the sister of Deagan Por and the love interest of Rune. Her father, Tom Por, was one of Will Shane's old teammates. She was originally after her father's share of the Shane Treasure after he lost a duel to Will. But after Deagan betrayed her, she decided to join the Shane Gang, becoming Eli and Harley's new adopted sister. She's equipped with a Shadow Walker, a Shadow Clan artifact that allows her to teleport through the shadows. Her favorite slug is an Arachnet named Webby.

Aerona Garcia (voiced by Brie Larson): She's the oldest sister of the Garcia Quadruplets. First daughter of Cilan Garcia. She's the girlfriend of Junjie Hanadera. She and her sisters know the ancient slug art of Slug Fu. She possesses an unusual ability to generate energy and fire beams of it. Her favorite slug is a Midas slug named Goldie. She and her sisters are also equipped with earpieces made from Shadow Clan Tech.

Fareeda Garcia (voiced by Brie Larson): The second sister of the Garcia Quadruplets. Second daughter of Cilan Garcia. She's the love interest of Itsuki Fuurin. She has a brilliant intellect and is able to create or hack into advanced security systems. She and her sisters know the ancient art of Slug Fu. She possesses an ability to detect if a person is telling a truth or a lie. Her favorite slug is a Midas slug named Shiny. She and her sisters are also equipped with earpieces made from Shadow Clan Tech.

Kala Garcia (voiced by Scarlett Johansson): The third sister of the Garcia Quadruplets. Third daughter of Cilan Garcia. She's the love interest of Joshwa Jones. She and her sisters know the ancient art of Slug Fu. She possesses an unusual ability to see through illusions. Her favorite slug is a Midas slug named Aurum. She and her sisters are also equipped with earpieces made from Shadow Clan Tech.

Paulina Garcia (voiced by Scarlett Johansson): The fourth and youngest sister of the Garcia Quadruplets. Fourth and youngest daughter of Cilan Garcia. She's the love interest of Deagan Por. Being the youngest, she developed a small fear of being without her sisters to watch her back, but knows she can always count on them and her friends for support. She possesses an unusual ability to create a hypersonic shriek like a Pterodactyl. Her favorite slug is a Midas slug named Chrysos. She and her sisters are also equipped with earpieces made from Shadow Clan Tech.

Rune (voiced by Asher Angel): A teenage boy who was raised by the Shadow Clan as he was called the Prince of the Shadows. He is the love interest of Dana Por. He is able to communicate with the Shadow Clan. He is also equipped with a Shadow Walker, allowing him to teleport through the shadows.

Barry Valentino (voiced by Nicholas Hoult): The son of the King of Sling who possesses healing powers due to the water of the Lightwell used to heal his ill mother when she was pregnant with him. At a young age, he was kept in isolation due to his parents' fear that someone would kidnap him and use his healing powers for evil. His favorite slug is a Boon Doc named Vega.

Joshwa Jones (voiced by David A. Kaye): Former enemy of the Shane Gang under the former name Twist. He is the long-lost family member of the Jones family as part of the Jones Sextuplets, the youngest. He was kidnapped by Lash's father with reason when he was still a newborn. He lost his right arm to a deadly assassin slinger, Dred, and was replaced by a robotic arm, thus, redeeming himself after all he had done in the past. After reuniting with his long-lost family, he adopted Lash to fulfill his kidnapper's final wish. His favorite slug is a Thugglet named Loki.

Deagan Por (voiced by Nicholas Hoult): Former enemy of the Shane Gang, brother of Dana Por and adopted son of the Shane family. Because of his obsession with the Infurnus, that caused him to betray his sister. But he reformed after the same assassin tried to kill him and abandoned his obsession for good. His favorite slug is a Jade Infurnus named Blake, given to him by Rune.

Junjie Hanadera (voiced by Vincent Tong): A mysterious young man from the East who was mind-controlled by an intelligent ghoul known as the Goon. He is the protector of the mysterious Eastern Caverns, alongside his younger sister, Yu Jie. He is the boyfriend of Aerona Garcia. He also has the skill to communicate with the Shadow Clan without a Shadow Talker. He and Yu Jie can also know what kind of slug is slung just by listening from a distance. His favorite slug is an Infurnus named Joo-Joo.

Yu Jie Hanadera (voiced by Kelly Marie Tran): She is another mysterious protector of the mysterious Eastern Caverns with her older brother, Junjie. She was mind-controlled by the She-Goon, the sister of the Goon. She is the love interest of Harley Shane. She and Junjie can also know what kind of slug is slung just by listening from a distance. Her favorite slug is an Infurnus named Towa.

Daichi Fuurin (voiced by Jonah Hauer-King): An Elf who is the oldest of the Fuurin Quadruplets. He and his 3 younger brothers are good friends to Junjie and Yu Jie, and their best students. In childhood, Daichi is known to be good with leadership as he is the oldest brother as he keeps his brothers in line and out of trouble. During Junjie and Yu Jie's corruption by the Goons, Daichi and his brothers somehow aged up past 20 years.

Itsuki Fuurin (voiced by Jonah Hauer-King): An Elf who is the second oldest of the Fuurin Quadruplets. He and his brothers are good friends to Junjie and Yu Jie, and their best students. He is the love interest of Fareeda Garcia. In childhood, Itsuki is a smart kid as he was able to solve math problems well. During Junjie and Yu Jie's corruption by the Goons, Itsuki and his brothers somehow aged up past 20 years.

Naoki Fuurin (voiced by Izaac Wang): An Elf who is the third oldest of the Fuurin Quadruplets. He and his brothers are good friends to Junjie and Yu Jie, and their best students. In childhood, Naoki is pretty hot tempered as he gets angry easily. He once fought a bully for bullying his younger brother, Satoshi, and is an experienced brawler in protecting his brothers from harm's way. During Junjie and Yu Jie's corruption by the Goons, Naoki and his brothers somehow aged up past 20 years.

Satoshi Fuurin (voiced by Simu Liu): An Elf who is the fourth and youngest of the Fuurin Quadruplets. He and his brothers are good friends to Junjie and Yu Jie, and their best students. In childhood, Satoshi is mischievous and quite chaotic, which is why his older brothers have to keep an eye on him just in case he does something so bad. During Junjie and Yu Jie's corruption by the Goons, Satoshi and his brothers somehow aged up past 20 years.

Will Shane (voiced by Sam Vincent): The famous protector of the 99 Caverns who went missing over the years until his sons took over when they turned 15. When he returned, he was mind-controlled by the Goons and was set free by Wizard the Psychic Elemental and Spirit. He is the husband of Eliza Shane and father of Eli, Harley and Xana. Burpy was his favorite slug before he disappeared, passing himself down to Eli.

Cilan Garcia (voiced by Chris Evans): An old teammate and friend of Will Shane and father of Aerona, Fareeda, Kala, Paulina and Tad. He was the former childhood best friend of Dr. Blakk when he betrayed him during their training with Shanai. He was placed into a coma after Dr. Blakk attacked him with a Ghouled Boon Doc. But after he fully recovered, he and Tad rejoined the Garcia Quadruplets down in Slugterra.

Tad Garcia (voiced by Adrian Petriw): The adopted son of the Garcia family and also one of the youngest members of the Shane Gang. He is also the biological son of Dr. Blakk. His biological mother escaped to the Surface when she was pregnant with him. But after she gave birth to him, she died from a fatal illness and gave him to Cilan to adopt.

Xantara 'Xana' Shane (voiced by Poonam Basu): She's the baby sister of Eli and Harley, and the youngest daughter of Will and Eliza. She was named after her late grandmother, Xantara Wilson, and nicknamed Xana. Eliza somehow became pregnant with her like a hermaphrodite after the final battle with Dr. Blakk and gave birth to her after restoring Slugterra with the help of the 12 Elementals. She will have a major role in this story.

Storm Hawks

Aerrow Mistheart (voiced by Sam Vincent): The Sky Knight and leader of the Storm Hawks. He is keeper of the Atomic Crystal, which allows him and his team to transform into the legendary warriors known as the Skylight Guardians. He's also the older brother of Aria and the love interest of Piper. He and Aria are the children of the legendary Lightning Strike, the original leader of the previous Storm Hawks, who was betrayed by his old co-pilot, known now as the Dark Ace. He's the Skylight Guardian of Air.

Aria Mistheart (voiced by Sarah Miller-Crews): The co-leader of the Storm Hawks, the younger sister of Aerrow and the Skylight Guardian of Mana. She and Aerrow are the children of the legendary Lightning Strike, the original leader of the previous Storm Hawks, who was betrayed by his old co-pilot, known now as the Dark Ace.

Radarr Timeheart (voiced by Ben Schwartz): Aerrow's co-pilot and is known to be the Skylight Guardian of Time. He originally was an unknown type of lemur creature until the Atomic Crystal turned him human, allowing him to change back and forth between forms. He's also Mimi's brother and the love interest of Skyla.

Mimi Lavaheart (voiced by Dina Sherman): A friend and loyal companion of Aria. She was a little Lava Eel Aria adopted as a pet until the Atomic Crystal turned her human, allowing her to change back and forth between forms. She's also Radarr's sister and the Skylight Guardian of Volcanoes.

Piper Crystalheart (voiced by Chiara Zanni): The Crystal Mage and the Skylight Guardian of Crystals. She is the main love interest of Aerrow. She self-taught herself everything she knows about every known type of crystals in all of the Atmos. Her talents also attracted the attentions of Master Cyclonis herself, who tried to lure her towards the side of evil. Her one dream is to be married to Aerrow someday.

Finn Lightheart (voiced by Matt Hill): The Sharpshooter and the Skylight Guardian of Light. He was a bit of the vain type of fellow, but is still a loyal member of the team. His love interests are Twilight and Vuto, thus he became bisexual. He was once known as the Great Domo of Terra Vapos, who was prophesized to be the hero of the people by being eaten by Verrocs. But he changed that prophecy and brought peace to Vapos.

Junko Fistheart (voiced by Colin Murdock): A Wallop with brutal punches and is the Skylight Guardian of Plasma. He's the love interest of Judy. Sometimes, he's a bit of a slow learner and also thinks with his stomach. He's able to eat and stomach anything he finds delicious, whether it's supposedly poisonous or even supposed to be used for your fingers. He used to be bullied when he was little for not being like most Wallops. His only friend besides Judy was his pet Gleep, Mickey. But after some encouraging words from his friends, he became one of the toughest members of the team.

Stork Joltheart (voiced by Scott McNeil): A Merb who is the carrier pilot of the Storm Hawks' ship, the Condor, and is the Skylight Guardian of Lightning. He's the love interest of Lavender. He used to be a paranoid fella who feared everything about the outside world of Atmos. But after becoming a Skylight Guardian and having Lavender join the team, he's been learning to become less paranoid and a better teammate.

Riggorix Ironheart (voiced by Max Mittelman): A Warpath who specializes in weapons for the Storm Hawks and is the Skylight Guardian of Metal. When he was a cub, his brother, Ratharr, murdered their own father right in front of him after betraying them to the Cyclonians. After that, Ratharr also took his eye. He's the adopted brother of Francine.

Skyler Stormheart (voiced by Beau Bridgland): The oldest sibling of the Stormheart Triplets and the Skylight Guardian of Fire. He and his siblings have been part of the Mistheart siblings' circle of friends since they were kids. Skyler is a cool and chill guy, but he gets aggressive when someone is being threatening to him, his siblings and his friends. He's the love interest of Aria.

Skyla Stormheart (voiced by Laura Faye Smith): The middle sibling of the Stormheart Triplets and the Skylight Guardian of Earth. She and her siblings have been part of the Mistheart siblings' circle of friends since they were kids. Skyla is a strong girl and is willing to risk her life to protect her brothers and her friends. She's Piper's best friend and the love interest of Radarr.

Sky Stormheart (voiced by Ben Schwartz): The youngest sibling of the Stormheart Triplets and the Skylight Guardian of Water. He and his siblings have been part of the Mistheart siblings' circle of friends since they were kids. Sky, being the youngest, can be mischievous whenever he feels bored out and decides to play pranks with his water powers, but he is still a good friend and will help whenever his team needs him. He's also the love interest of Amy Lu.

Judy Tealheart (voiced by Laura Stahl): A female Wallop who is the girlfriend of Junko. After she was rescued from the Cyclonian, Joker, she joined the Storm Hawks to get away from her overprotective father, Bulky Charge. She is the Skylight Guardian of Energy.

Lavender Indigoheart (voiced by Elizabeth Maxwell): A female Merb who is the lover of Stork. Unlike her fellow Merbs, she has strong courage, never backing down from the most dangerous of threats. Through her encouragement, she managed to round her fellow Merbs into a revolution against a raiding Cyclonian party. She is the Skylight Guardian of Psychic.

Starling Starheart (voiced by Nicole Oliver): The lone survivor of the Sky Knight Squadron known as the Interceptors. Her entire squadron was killed by Repton, leader of the Raptors. After helping the Storm Hawks rescue a group of Raptor scientists, she officially joined the Storm Hawks and accepted them as her new family. She is the love interest of the mysterious Dark Ace lookalike, Spade. She is the Skylight Guardian of Stars.

Amy Lu Iceheart (voiced by Ashley Biski): A young female Blizzarian who is the love interest of Sky. She is the younger sister of Suzy Lu, the Sky Knight of the Absolute Zeroes, and is also the Skylight Guardian of Ice. She met the Storm Hawks during the Great Atmos Race and joined them after helping her sister's squadron retake their home terra from the Cyclonians.

Twilight Blackheart (voiced by Brittany Cox): A young Dhampir girl who joined the Storm Hawks after helping them rescue Finn from a cauldron of Verrocs. She is the first love interest of Finn and is also the Skylight Guardian of Shadows.

Vuto Chiheart (voiced by Christian Banas): A young boy who was originally from Slugterra after he was transported into the Atmos by accident from the Outland Reach. He is the love interest of Finn and Twilight as he is pansexual. He is the Skylight Guardian of Chi.

Odessa Auraheart (voiced by Lenore Zann): A former spirit who could see the future under the name of Oracle and is the Skylight Guardian of Aura. She joined the Storm Hawks after the Atomic Crystal turned her back into a flesh human in the Forbidden City on Terra Xoam.

Francine Coralheart (voiced by Laura Stahl): A young female Aquanosian who was adopted by Riggorix as his new sister and is also the Skylight Guardian of Corals. She lost her birth parents after they were eaten by the Leviathan, leaving her as the only survivor.

Battle Force 10

Vert Wheeler (voiced by Mark Hildreth): The leader of Battle Force 10 and the older brother of Olivia. He and Olivia were best friends with Eli and Harley since their childhood. He's the lover of Sage. He's also the reincarnation of Zodiac Aries, leader of the Zodiac Guardians and Sage's original lover. His Zodiac power allows him to manipulate cosmic fire and create wings of crimson flame. His main vehicle is the Saber.

Olivia Wheeler (voiced by Amber May): Vert's younger sister and co-leader of Battle Force 10. She and Vert were Eli and Harley's childhood friends before they moved to different cities. She's the reincarnation of Zodiac Ophiuchus. Her Zodiac powers allow her to bond with serpents and open portals to the legendary Astral Realm. Her main vehicle is the Jetray.

Sage (voiced by Kira Tozer): The last surviving member of the Blue Sentients and the founder of forming Battle Force 10 to defend Earth from the Vandals, Sark and Dwellers. She was the past lover of Zodiac Aries before his death during the war. But he returns to her as Vert after his rebirth. She loses part of her memory whenever she goes through a Stormshock portal and is confined to the drivable base of operations known as the Mobius Command Center.

TRINA (voiced by Laura Post): A Sentient Protocol Robot built by Sage. She has a bit of a sassy attitude, but still remains a loyal friend to Sage and BF10. Though she has a small glitch problem whenever she passes through a Stormshock portal.

Agura Ibaden (voiced by Kathleen Barr): A young African woman who's a professional tracker and huntress. She's the team's Hunter with a couple of side-interests for off-road races and playing the harp. She's the reincarnation of Zodiac Virgo. Her Zodiac power allows her to connect with animals and control plants. She's also the girlfriend of Stanford. Her main vehicle is the Tangler.

Sherman & Spinner Cortez (voiced by Brian Drummond & Gabe Khouth): Fraternal twins who are tall (Sherman) and short (Spinner). They're the Strategic Tactical and Tech Support of the team. Sherman's the brainiac of the duo while Spinner has quick gaming reflexes. They're both reincarnations of the Zodiac Gemini Twins, Castor and Pollux. Their Zodiac powers give them super strength, allowing them to lift massive loads with their bare hands. Their main vehicle is the Buster.

Stanford Isaac Rhodes IV (voiced by Noel Johansen): A young British man who's a very timid violinist and isolated himself from society for years. He was born with unstable psychic powers. He ran away from home after he hurt his own brother with his powers just to protect him. But he's learned to become more open with his friends over time. He's the team's Artillery Expert. He's also Agura's boyfriend. He's the reincarnation of Zodiac Scorpio, the most dangerous of all the Zodiac Guardians. His Zodiac powers allow him to amp up his psychic powers and as well as cause destruction. His main vehicle is the Reverb.

Zoom Takazumi (voiced by Alessandro Juliani): A Muay Thai fighter who has a love for his skill in archery. He used to be part of the Order of the Flying Fists, but he left, not feeling that he belonged there anymore with permission from the Masters. He's the reincarnation of Zodiac Sagittarius. His Zodiac powers allow him to sense people's auras and create an aura bow and shoot aura arrows. He's also the love interest of Grace. His main vehicle is the Chopper.

Talia Wang (voiced by Dani Chambers): A Chinese cheerleader girl who cheers for her team as the team's Support Enforcer. She's as cheerful as she is dangerous while in the Battle Zones. She's the reincarnation of Zodiac Aquarius. Her Zodiac powers allow her to manipulate the element of ice. She's the love interest of Ivan. Her main vehicle is the Pom-Pom Pouncer.

Rayona Singh (voiced by Dani Chambers): An Indonesian girl who's the best cooker in the team and the team's Medical Officer. She's always looking for new ways to improve her cooking skills and trying new recipes. She's also the reincarnation of Zodiac Cancer. Her Zodiac powers allow her to manipulate, create and shape mud. She's also the love interest of Horace. Her main vehicle is the Steaming Wok.

Ivan Dalton (voiced by Daman Mills): A close friend of Vert and Olivia from the Yukon and the team's Precaution Safety Officer. He's quite fond of his friends and will do anything to protect them. He's also the reincarnation of Zodiac Capricorn. His Zodiac powers allow him to control earth. He's the love interest of Talia. His main vehicle is the Dune Cat.

Horace Karpov (voiced by Daman Mills): A Ukrainian gamer and the team's Sharpshooter. He's a bit of a snob, but he's still a loyal member of the team. He's the reincarnation of Zodiac Leo. He has yet to awaken his Zodiac powers. He's the love interest of Rayona. His main vehicle is the Defender.

Iguanarox (voiced by Keith Silverstein): The former Vandal Warlord who was cast out after having lost the title to Captain Kalus. After meeting Vert and Olivia, and saving them from Kalus and his mate, Tigress, he chose to return with them and their team to Earth and join them as their new third-in-command. His main vehicle is the Spine Crawler.

Zug (voiced by Brian Drummond): A Sark robot who formerly served under the evil Zemerik. After being reprogrammed, he infiltrated BF10 to be Stanford's servant in order to swipe the Battle Keys. But after learning about Stanford's tragic childhood and his unstable powers, he chose to abandon Zemerik's mission and join the team. His main vehicle is the Zendrill.

Grace Hernandez (voiced by Kira Tozer): She's the former waitress at Zeke's Diner who joins BF10 after learning about their true mission and about them being the reincarnations of their past lives, the Zodiac Guardians. She's the reincarnation of Zodiac Pisces. Her Zodiac powers allow her to create giant waves and blasts of water. She's the love interest of Zoom. Her main vehicle is the Speed Runner.

Destina (voiced by Suzie Yeung): A female Purple Sentient who was found in the Vault within the Inter Zone. She had been in stasis for 100,000 years. She was known to be close with the past Zodiac Guardians with knowledge of the ancient ways. She was also their advisor.

Cellica (voiced by Arryn Zech): The female elf leader of the Waterlight Clan from the home world of the Dwellers. She's also the sister of the evil Dweller leader, Sauron. After the Dwellers infected Stanford, the team traveled to the Dweller home world to retrieve the cure. As they met her, her friends helped create the cure. After fending off an attack from Sauron's forces, she decided to return with the team and join them as the new fourth-in-command. Her main vehicle is the Dawn Spirit.

Zen Hyuuga (voiced by Kathleen Barr): Zoom's old friend from the Order of the Flying Fists. He and his girlfriend, Mai, dropped in on them under orders from Master Shad to bring Zoom back to the Order. But after a mission in a Battle Zone, Zoom convinces them that Master Shad manipulated them to do his dirty work. After returning to Earth, he decided to join the team while Mai returns to the Order to expose Master Shad's treachery to the Masters. His main vehicle is the Oathkeeper.

Main Villains

Heltora (voiced by Chloe Bennet): The main antagonist of the main crossover story and the known true leader of the Shane Gang's enemies, the Doom Slingers. She's been watching the Shane Gang from the very beginning. She first made herself known to them during the dangers with the Elementals, draining the Goon's dark energy and sending Blakk back to the Deep Caverns. She then teamed up with Spirex in an attempt to use the Elementals to trigger the 99 Cavern's fault lines and destroy Slugterra. But she managed to escape after the Shane Gang arrested Spirex. Although, Eli has a mysterious connection to her and it is unknown why.

Creatures of Omentaur: A huge group of dark shadow creatures that are the minions under the service of their mistress, Heltora, and serves as the secondary antagonists.

El Diablos Nacho (voiced by Brian Drummond): An Elite Darkbane from the Deep Caverns who worked with Dr. Blakk as insurance to honor his deal with the Darkbane leader, Brimstone. After he was banished back to the Deep Caverns for his first few failures, he infected Harley with a Dark Water-filled dart, turning him into the hybrid he was now. He was sent back to the Deep Caverns by the Shadow Clan after the events of the final battle. He will be serving as the tertiary antagonist and the leader of the newly formed group of villain slingers called the Doom Slingers.

Dred (voiced by James Earl Jones): A cold-blooded assassin Nacho hired to kill Joshwa and Deagan for their failures and complaints about the Shane Gang, and also one of the 2 co-leaders of the Doom Slingers. During the final battle, Deagan and Blake burned his entire body, causing him to be outfitted into a dark mechanical suit in Stalagmite 17. He will be serving as the quaternary antagonist.

Locke & Lode (voiced by Mark Oliver & Lee Tockar): Twin brothers who were loyal to Dr. Blakk. They were both tough, but both were also very dimwitted. No matter what they tried to do each time they went up against the Shane Gang, they always ended falling flat on their faces. After the events of the final battle, they were locked up in Stalagmite 17 with the remaining loyalties. They both join the Doom Slingers to destroy the Shane Gang once and for all.

Boss Ember and the Scrap Force (Brian Drummond voices Boss Ember, Ian James Corlette voices Straggus, Andrew Francis voices Mongo, Kira Tozer voices Petra, Kathleen Barr voices Gretchen, Colin Murdock voices Lil Stevie, Sam Vincent voices Welder Walter, Gabe Kouth voices Dirty Bill, Michael Dobson voices Big Joey, Amber May & Dani Chambers voice the Scrapette Sisters; Zaye and Xee): Boss Ember is an Octoad who was the self-appointed gatekeeper of the Deep Storage in the Scrapheap. He and his Scrap Force shake people down due to security never patrolling Deep Storage. But after he and his human lover challenged Eli and Harley to a duel, the team managed to defeat him and the Scrap Force and escaped. Later, after the events of the final battle, Boss Ember and the Scrap Force attempted to take over Caverna Mall. But after a failed attempt with a Megamorph Armashelt, Ember failed miserably and got locked up. He and the Scrap Force all join the Doom Slingers to destroy the Shane Gang once and for all.

Billy and the Hooligang (Brian Drummond voices Billy, Dani Chambers voices Belinda & Sam Vincent voices Croesus): The Hooligang were some of the first group of slingers to become official employees of Blakk Industries. They first consisted of Billy, Goggles and Shorty. They were assigned to Quiet Lawn Cavern to 'convince' Red Hook to work for Dr. Blakk. But when the Shane Gang interfered the first time, even after Blakk supplied them with ghouls, Shorty and Goggles turned on Billy, forcing him to retreat. Later, Billy recruited Croesus from Club Slug and a group of slug hunters as they encountered the Shane Gang again in Snowdance Cavern. Later, Billy recruited his sister and lover, Belinda. But after the final battle, the slug hunters turned on them, leading them to be imprisoned. They join the Doom Slingers to destroy the Shane Gang once and for all.

John Bull (voiced by Lee Tockar): He was the first loyal minion to Dr. Blakk. He was disqualified after using a Tempesto ghoul against Eli in a tournament he took part in when he and Harley first arrived in Slugterra. Since then, he's helped Dr. Blakk and his other minions with every little detail of taking over Slugterra. But after the final battle, he was imprisoned with the remaining loyalties after most of the minions turned against them. He joins the Doom Slingers to destroy the Shane Gang once and for all.

CC (voiced by Colin Murdock): One of Dr. Blakk's loyal minions. He was once a rich, respectful slinger until he seized the opportunity to join Dr. Blakk. Even though he was a skilled slug slinger, the Shane Gang managed to best him time and time again. Still, he remained loyal to Dr. Blakk until the final battle. He joins the Doom Slingers to destroy the Shane Gang once and for all.

Sedo (voiced by Sam Vincent): Pronto's life long nemesis. He wanted to be the King of the kingdom of Molemound Cavern. His friend Munch serves as his bodyguard. He once entered the Slug Run to obtain a Crystalyd slug as a prize for Dr. Blakk to ghoul. But he was foiled by Pronto and his pet Crystal Worm, burying him deep underground. And for the both times he and Munch tried to take Molemound, they were foiled by their own stubborn pride. They both join the Doom Slingers to destroy the Shane Gang once and for all.

Munch (voiced by Michael Dobson): A big fat one-eyed Cyclops who works as a friend and bodyguard to Sedo. He was causing trouble in Quisingly Cavern and challenged the Shane Brothers…with no ringers. Luckily, Burpy and the others scared him off with a Mammoth Mecha Beast. He later teamed up with Sedo in order to take Molemound Cavern for themselves. They both join the Doom Slingers to destroy the Shane Gang once and for all.

Malvolio Drake (voiced by Michael Dobson): Referred to as the sea-fairing tyrant who enjoys robbing passing slug slingers of their slugs. He also contains jars filled of his own toenails. Each one since pirate school. He helped the Shane Gang with bringing them to Dr. Blakk's underwater drill, but he quickly betrayed them after settling a dispute with his brother. But they were foiled after a Cavern Shark ate their favorite slug, Mimkey, before Watts found him and brought him to the Shane Gang. They both join the Doom Slingers to destroy the Shane Gang once and for all.

Brutale Drake (voiced by Michael Dobson): Malvolio's older brother and second-in-command. He was hired by Blakk to buy off his brother's crew for underwater work to build the drill in order to drill into the Deep Caverns for more Dark Water. But the truth behind Brutale's intentions was because he accused Drake for stealing Mimkey from him when they were kids, forgetting that he gave Mimkey to him for his birthday. After settling the dispute, they teamed up and attempted to take the Dark Water for themselves. But they were foiled after seeing Mimkey get eaten by a Cavern Shark. They join the Doom Slingers to destroy the Shane Gang once and for all.

Fang (voiced by Lee Tockar): A crewmember on Malvolio's pirate crew. He was the toughest member on the crew. But not as tough as Kord was the first time they squared off. They join the Doom Slingers to destroy the Shane Gang once and for all.

Squid (voiced by Michael Dobson): A former mate of Malvolio's pirate crew who used to work for Dr. Blakk. He deserted the crew to work with someone with a bigger picture. But after dueling with Barry and after the final battle, he was put into custody in Stalagmite 17. They join the Doom Slingers to destroy the Shane Gang once and for all.

Mr. Saturday (voiced by Scott McNeil): A creepy slug slinger from the tropical caverns. There were rumors that he's been experimenting with dark slug magic. Using a highly trained Cryptogrif ghoul, he made an art form of mind-controlling his foes. He used that skill to mind-control civilians in Caverna Mall and the slinger guards in Stalagmite 17, turning them into his personal butlers and maids. But every time that happened, the Shane Gang were always able to stop him. He joins the Doom Slingers to destroy the Shane Gang once and for all.

The Game Master (voiced by Kirby Morrow): A brilliant psychopath who designs eccentric games that are brilliantly devised to trap slingers and steal their slugs. He once lured the Shane Gang into one of his traps out in Land's End Cavern and forced them into his sick games. But luckily, since he never studied Pronto like he did the others, Pronto helped the Shane Gang get the better of him. But he managed to escape, leaving the Shane Gang to rescue the slugs he stole. But they managed to capture him sometime after the final battle. He joins the Doom Slingers to destroy the Shane Gang once and for all.

Quintin (voiced by Andrew Toth): A brilliant rogue scientist who specialized in robotics and artificial slug technology, thus, creating robot slugs known as Roboslugs due to his Molluscophobia, fear of slugs. He got over his fear after the Shane Gang's Floppers and slugs from the labs saved him from his collapsing Mecha Mech. But he continued his evil science work after being hired by Dr. Blakk, creating war machines such as Titan. After the final battle, he continued working with Sgt. Slug as his partner. They both join the Doom Slingers to destroy the Shane Gang once and for all.

Sgt. Slug (voiced by Brian Drummond): He was the owner and operator of Club Slug, a vacation destination for slingers and boot camp slugs. But it turned out to be a scam. Sgt. Slug was using a machine to pump slugs up temporarily and cause them to grow tired so slingers to pay for another round of training. Luckily, Eli and Harley saw through the scam and shut down Sgt. Slug's operations. But then, he took up employment with Dr. Blakk. After the final battle, he continued working with Quinten as his partner. They both join the Doom Slingers to destroy the Shane Gang once and for all.

The Freakshows (Colin Murdock voices Dead-Eye, Brian Drummond voices Gator & Andrew Koth, Kirby Morrow & Scott McNeil voices Freakshow Minions): Old enemies of Will Shane and his old team. They were led by Dead-Eye and Gator. They first encountered the new Shane Gang after the restoration of Slugterra and Xana's birth. Will sent them running using a weapon that was gifted to him by an old friend. They join the Doom Slingers to destroy the Shane Gang once and for all.

Blite (voiced by Colin Murdock): An unstable slug slinger who uses Neotox slugs to paralyze his opponents and hurts them in very brutal ways. Will lured him into the Cavern of Time and trapped him inside. The Shane Gang freed him to help with a Ghouled Neotox Fog in Lumino Cavern caused by Joshwa. But they managed to put him back in after he learned the truth about Eli and Harley. He escaped while riding a Dino Beast after the final battle with Dr. Blakk. He joins the Doom Slingers to destroy the Shane Gang once and for all.

Spirex (voiced by Alec Willows): A spider-like creature who teamed up with Heltora and tried to use the Elementals to destroy Slugterra by triggering the fault lines in the 99 Caverns. But they failed when the Shane Gang managed to foil their plan with Eli and Harley performing and perfecting their Slug Fu training to call the Elementals back. He joins the Doom Slingers to destroy the Shane Gang once and for all.