About the teachers of the Omniverse's academy, I decided to try an original list (so don't be surprised if there's some characters from My Hero Academia or Looney Tunes who will appears as teachers, it won't change the rating of this fanfic which will be K (or in theathers language : PG) and will remain a Digimon Tiny Toons x-over category.
Teachers :
Chemistry : Koro-Sensei (Assassination Classroom) and Andrew Garfield (Spiderman/Peter Parker 3 from Spiderman No Way Home)
English : Hizashi Yamada/Present Mic (My Hero Academia) and Irina/Bitch-Sensei (Assassination Classroom)
Modern Balance Art : Nemuri Kayama/Midnight (My Hero Academia)
Asiatic Arts and Japanese language : Amaterasu (Okami)
Italian Arts and Italian Renaissance : Arpeggio (Sly 2) and Ezio (Assassin's Creed)
Gym : Philotectes (Hercules), Jamjars (Banjo-Kazooie), Karasuma (Assassination Classroom) (he teaches Baseball along with Marvin the Martian), Sylvester the Cat (he appears as a football coach), Marvin the Martian (Looney Tunes) (he teaches Baseball along with Karasuma), Aquarius (Fairy Tail) (She teaches aquatic sports) and Giroro (Keroro)
Biology and wildlife preservation : Nigel Thornberry (The Wild Thornberrys), Globox (Rayman) and Chris Pratt (Star-Lord from the MCU)
Music : Brook (One Piece) (Let's hope he's not asking his female students about her panties but somehow I think he will...) and Pepe Le Pew (Looney Tunes).
Shop : Grunkle Stan (Gravity Falls) and Wile. E. Coyote (Looney Tunes)
Photography : Frank West (Dead Rising) (Obviously, isn't it ?) and Tobey Maguire (Spiderman/Peter Parker 2 from Spiderman No Way Home)
Geography : Gran Torino (My Hero Academia) and Ryan Reynolds (Deadpool)
Mathematics : Ectoplasm (My Hero Academia)
Home Economics : Tom Nook (Animal Crossing)
History : Kratos (God of War) and Raine (Tales of Symphonia)
Ethics : Vanilla Rabbit (Sonic the Hedgehog) and Lady Kluck (Robin Hood)
Spanish : Speedy Gonzales (Looney Tunes)
Homeroom teacher/Field Trip chaperone : Aizawa/Eraserhead (My Hero Academia)
And there's also some new classes with teachers and believe me, when you will read this fic, you will say : Oh man, school is fun with those classes.
Heroics : All-Might (My Hero Academia), Will Wedgewood/Wonder Red (The Wonderful 101) and Captain Qwark (Ratchet and Clank)
Litterature : Cementoss (My Hero Academia) and Levy Mcgarden (Fairy Tail)
Ghost hunting science : Professor E Gadd (Luigi's Mansion)
Astrology and Astronomy : Saori (Saint Seiya) and Isaac Clarke (Dead Space)
Magic : Merlin and Archimedes (Sword in the Stone) and Benedict Cumberbatch (Dr. Strange in the MCU)
Vampire hunting : Trevor Belmont (Castlevania), (he appears as Sypha's boyfriend and is sometimes at knives out with Professor E Gadd)
Exorcism : Meisuke Nueno/Nube (Hell Teacher Nube)
Criminology : Inspector Gadget, Charlie Cox (Daredevil in the MCU) and Eliot Hooker/Wonderful Blue (The Wonderful 101)
Mastering of the Balance : Biscuit Krueger (HunterxHunter), Chris Hemsworth (Thor in the MCU) and Iroh (Avatar : The Last Airbender)
Balance development : Higari Maijima (My Hero Academia) and Tom Holland (Spiderman/Peter Parker in the MCU)
Basic Wild Balance : Bugs Bunny (Looney Tunes) and Bobobo (Bobobo-bo Bo-bobo)
Advanced Wild Balance : Daffy Duck (Looney Tunes) and Don Patch (Bobobo-bo Bo-bobo)
Balance Logic : Elmer Fudd (Looney Tunes) and Cranky Kong (Donkey Kong Country)
Animal Obedience : Foghorn Leghorn and Sheepdog Sam (Looney Tunes) and Boss (Hamtaro)
Computer programming : Granny (Looney Tunes), Otacon (Metal Gear Solid) and Cid (Final Fantasy VIII)
History of the Balance : Porky Pig (Looney Tunes), Byleth (Fire Emblem : Three Houses) and Raiden (Mortal Kombat)
Weather's balance : Taz (Looney Tunes) and Storm (X-Men)
Advanced heroics : Tweety Bird (Looney Tunes) and Byleth (Fire Emblem : Three Houses) (Byleth also teaches History of the Balance)
Morality of the Balance : Tom Hiddleston (Loki in the MCU), Toadsworth (Super Mario Sunshine) and Rangiku Matsumoto (Bleach)
Black Magic : Witch Hazel (Looney Tunes), Tom Hardy (Venom in the MCU and Bane in Batman Trilogy from Christopher Nolan) and Bayonetta
Pastry explosive : Yosemite Sam (Looney Tunes) and Baldroy (Black Butler).
Martials arts : Master Splinter (TMNT)
Cinema arts : Thaddeus Plotz (Animaniacs) and Hugh Jackman (Wolverine in the X-Men Movie Saga).
Drama arts : Dr. Shrink (Animal Crossing) and Thorax (MLP : Friendship is magic).
Prison Education : Puri-Puri Prisoner (One-Punch Man) and Sandy (LEGO Monkie Kid).
Dream Psychology : Robert Englund (The man behind the infamous slasher : Freddy Krueger) and NIGHTS.
Staff :
Principal : Ashton Lhantis (An OC's based on Aston Lhant from Tales of Graces and Caleb's foster father)
Vice-principal : Bottles (Banjo-Kazooie)
Nurse : Recovery girl (My Hero Academia)
Chef : Lunch Rush (My Hero Academia)
Balance training specialist : 13 (My Hero Academia)
Guidance Counselor : Hound Dog (My Hero Academia)
The students :
From Prime's Universe: Sonic Prime, Shadow and Sakura Kinomoto.
The OCs: Caleb with Veemon (dark blue) and shiny Mew, Luke with Dracomon and Absol, Aria and Lunamon.
Digimon Adventure: Tai (11 years old) and Agumon, Sora (11 years old) and Biyomon, Matt (11 years old) and Gabumon, Izzy (10 years old) and Tentomon, Mimi (10 years old) and Palmon, Joe (12 years old) and Gomamon, TK (8 years old) and Patamon, Kari (8 years old) and Gatomon, Davis (11 years old) and Veemon, Yolei (12 years old) and Hawkmon, Cody (9 years old) and Armadillomon, Meiko and Meicomon (10 years old).
Digimon Tamers: Takato and Guilmon, Rika and Renamon, Henry and Terriermon, Suzy and Lopmon, Kazu and Guardromon, Kenta and MarineAngemon, Jeri and Leomon, Impmon, Ryo and Cyberdramon, Calumon.
Digimon Frontier: Takuya, Shinya, Koji, Koichi, JP, Tommy, Zoe, Bokomon, Neemon.
Digimon Data Squad: Marcus and Agumon, Kristy and Biyomon, Thomas and Gaomon, Yoshino and Lalamon, Keenan and Falcomon, Sampson and Kudamon, Miki and Black PawnChessmon, Megumi and White PawnChessmon, Spencer and BanchoLeomon, Royal Knights.
Digimon Fusion: Mikey, Shoutmon and the Fusion Fighters, Jeremy, Angie, Christopher, MailBirdramon, Greymon and Blue Flare, Nene with Sparrowmon and Mervamon, Ewan and Damemon, Tagiru (unknown name in United States dub) and Gumdramon.
Mickey and his friends: Mickey, Donald, Goofy, Jiminy Cricket, Max and Oswald
Sword in the Stone: Wart.
Lilo & Stitch: Lilo, Stitch, Jumba, Pleakley and Mertle Edmonds.
Tiny Toon Adventures: Buster Bunny, Babs Bunny, Plucky Duck, Shirley McLoon, Dizzy Devil, Furrbal Pussycat, Fifi La Fume, Calamity, Cosette Le Pew, Little Beeper, Gogo Dodo, Little Sneezer and Sweetie Bird.
Animaniacs: Yakko, Wakko and Dot.
My Little Pony Friendship is Magic: Twilight Sparkle, Spike, Applejack, Rainbow Dash, Rarity, Fluttershy, Pinkie Pie, Apple Bloom, Scootaloo, Sweetie Belle, Sunset Shimmer, Trixie Lulamoon and Starlight Glimmer.
Transformers: Bumblebee, Optimus Prime, Ironhide, Ratchet and Jazz.
Transformers Generation 1: G1 Convoy, Ultra Magnus, Rodimus Prime, Chromedome, Fortress Maximus, Ginrai, Godbomber, Star Saber, and Victory Leo.
Post G1: Beast Convoy, Lio Convoy, Big Convoy, Fire Convoy, God Magnus, Galaxy Convoy, Sonic Bomber, and Ligerjack.
Medabots: Ikki, Metabee and Rokusho.
Teenage Mutant Ninja Turtles (2003): Raphael, Leonardo, Donatello and Micheangelo.
Rugrats/All grown up: Tommy, Chuckie, Phil and Lil, Angelica, Susie, Kimi and Dil.
Arrgh! Real monsters: Ickis, Oblina and Krumm.
The Loud house : Lori Loud, Leni Loud, Luna Loud, Luan Loud, Lynn Jr Loud, Lincoln Loud, Lucy Loud, Lana Loud, Lola Loud, Lisa Loud and Lily Loud.
Hamtaro: Hamtaro, Bijou, Boss, Oxnard, Pepper, Maxwell, Sandy, Stan, Pashmina, Cappy, Penelope, Howdy, Dexter, Panda, Lapis and Lapislazuli.
Keroro (anime): Keroro, Pururu, Giroro, Tamama, Kururu and Dororo.
Dragon Ball Z: Goku, Vegeta, Gohan, Piccolo, Krillin, Goten, Trunks, Future Trunks and Bulma.
Dr. Slump : Arale and Gacchan
One Piece: Monkey D. Luffy, Nami, Roronoa Zoro, Sanji, Tony Chopper, Nico Robin, Franky and Brooke.
Naruto: Naruto Uzumaki, Sakura Haruno, Sasuke Uchiha, Kakashi (Team 7), Kiba Inuzuka and Akamaru, Shino Aburame, Hinata Hyuga, Kurenai Yuhi (Team 8), Shikamaru Nara, Choji Akimichi, Ino Yamanaka, Asuma (Team 10), Rock Lee, Neji Hyuga, Tenten, Might Guy (Team 9) and Gaara.
Yu Yu Hakusho Ghost Files: Yusuke, Kuwabara, Hiei, Kurama and Keiko.
Ruroni Kenshin: Kenshin, Kaoru, Yahiko and Sanosuke.
Cardcaptor Sakura: Sakura Avalon, Kero, Li Showron, Madison Taylor and Meilin Rae.
Sailor Moon (anime): Serena (Sailor Moon), Rini (Sailor Mini Moon), Darien (Tuxedo Mask), Luna, Artemis, Diana, Ami (Sailor Mercury), Raye (Sailor Mars), Lita (Sailor Jupiter), Mina (Sailor Venus), Amara (Sailor Uranus), Michelle (Sailor Neptune), Trista (Sailor Pluto) and Hotaru (Sailor Saturn).
Pretty Cure: Natalie Blackstone, Mepple, Hannah Whitestone, Mipple and Moppun.
Tokyo Mew Mew (anime): Zoey, Corina, Bridget, Kikki, Estelle, Elliot, Wesley and Mark.
Yu-Gi-Oh: Yugi/Yami, Tea, Joey, Tristan, Serenity and Kaiba
Saint Seiya: Seiya, Hyoga, Shiryu, Shun, Ikki and Saori.
Hunter x Hunter: Gon Freecss, Killua Zoldyoc, Leorio, Biscuit Krueger and Kurapika.
Assassination Classroom: Koro-Sensei, Nagisa Shiota, Kaede Kayano and Karma Akabane.
Fairy Tail: Lucy, Natsu, Wendy, Erza and Gray.
Shaman King: Yoh, Anna, Manta, Tao Ren, Ryunosuke and Horohoro.
Inuyasha: Inuyasha, Kagome, Shippo, Sango and Miroku.
My Hero Academia: Class 1-A students and All-Might.
Bleach: Ichigo, Rukia and Byakuya Kuchiki, Reiji Abarai, Toshiro Hitsugaya, Orihime Inoue and Yoruichi Shiohin
Black Clover: Asta, Yuno, Noelle, Klaus and Mimosa.
Jojo's Bizarre Adventure: Jotaro and the Stardust Crusaders.
Fist of the North Star: Kenshiro, Rin and Bat.
Seven Deadly Sins: Meliodas and Elizabeth.
Gundam: Amuro Ray and RX-78-2 Gundam.
Gundam Generation 1: G1 Convoy, Ultra Magnus, Rodimus Prime, Chromedome, Fortress Maximus, Ginrai, Godbomber, Star Saber, and Victory Leo.
Post G1: Beast Convoy, Lio Convoy, Big Convoy, Fire Convoy, God Magnus, Galaxy Convoy, Sonic Bomber, and Ligerjack.
RWBY: Ruby, Weiss, Blake and Yang.
Bobobo-bo Bo-bobo: Bobobo, Don Patch, Beauty, Jelly Jiggler, Gasser (Gas-Can as a nickname found by Beauty), Dengakuman, Softon, Hatenko and Torpedo Girl.
Katekyo Hitman Reborn: Tsunayoshi Sawada & Reborn, Gokudera Hayato, Yamamoto Takeshi, Ryohei Sasagawa, Lambo, Kyoya Hibari, Mukuro and Chrome, Kyouko Sasagawa, Hana Kurokawa and Haru Miura.
Medaka Box: Medaka Kurokami and Zenkichi Hitoyoshi.
Saiki Kusuo: Saiki Kusuo, Kaidou Shun, Nendou Riki, Hairo Kineshi, Kuboyasu Aren, Mera Chisato, Aiura Mikoto, Toritsuka Reita, Teruhashi Kokomi and Yumehara Chiyo.
Gravity Falls: Dipper and Mabel.
Avatar The Last Airbender: Aang and Momo, Katara, Sokka, Zuko, Suki and Toph.
Miraculous : Tales of Ladybug and Cat Noir : Marinette Dupain-Cheng (Ladybug), Adrien Agreste (Cat Noir), Alya Césaire (Rena Rouge) and Nino Lahiffe (Carapace).
W.I.T.C.H. :Will Vandom, Irma Lair, Taranee Cook, Cornelia Hale, Hay Lin and Matt Olsen.
Super Mario Bros: Mario, Luigi, Peach, Daisy, Yoshi, Birdo, Rosalina and Luma, Starlow, Twink, Millennium Star, Toad, Toadette, Boo, Dry Bones, Prince Mallow and Geno.
Donkey Kong Country: Donkey Kong, Diddy Kong, Dixie Kong, Lanky Kong, Chunky Kong, Tiny Kong, Kiddy Kong, Funky Kong, Blaster Kong, Candy Kong and Rambi.
Legend of Zelda: Link, Zelda/Sheik, Impa, Lana (from Hyrule Warriors), Linkle (from Hyrule Warriors), Darunia, Ruto, Tingle, Young Link, Skull Kid, Ravio, Midna, Agitha, Fay, Marin, Toon Link, Toon Zelda and Medli.
Metroid: Samus, Baby Metroid and Galactic Federation.
Kid Icarus: Pit, Dark Pit, Palutena, Viridi, Phospora, Magnus, Dark Lord Gaol.
Nintendo Entertainment System Classics: Ice Climbers, ROB, Duck Hunt, Little Mac and Doc Louis.
Animal Crossing: Ai, Yu and Isabelle.
Kirby (video game): Kirby, Tiff and Tuff (from Kirby anime), Fololo and Falala, Rick, Coo, Kine, Goey, Daroach, Adelaine and Ribbon, Prince Fluff, Meta Knight, Sword Knight, Blade Knight, Knuckle Joe and Sirica (from Kirby anime).
Pikmin: Olimar, Louie, Alph and Brittany.
Star Fox: Fox McCloud, Falco Lombardi, Krystal, Slippy Toad, Peppy Hare and ROB 64.
F-Zero: Captain Falcon and Elite Mobile Task Force.
Pokémon: Ash, Tyson (OC), Misty, Brock, Gary, May, Max, Dawn, Verity, Sorrel, Maylene (Pokemon Diamond and pearl), Iris, Cilan, Bianca, Stephan, Serena, Clemont, Bonnie, Mallow, Lana, Lillie, Sophocles, Kiawe, Gladion, Pichu Siblings, Jigglypuff and Mewtwo, Grookey, Scorbunny and Sobble
Pokémon Mystery Dungeon: Shiny Bulbasaur, Team Go Getters (Squirtle, Charmander and Chikorita), shiny Pikachu, shiny Skitty, shiny Meowth, shiny Cyndaquil, shiny Totodile, shiny Treecko, shiny Torchic, shiny Mudkip, shiny Turtwig, Team Poképals (Piplup, Chimchar and Grovyle), shiny Snivy, shiny Tepig, shiny Oshawott, shiny Chespin, shiny Fennekin and shiny Froakie.
Fire Emblem: Marth, Ike, Roy, Robin (male), Lucina, Chrom, Corrin (female), Rowan and Lianna (from Fire Emblem Warriors).
Earthbound: Ness, Paula, Poo, Jeff, Lucas, Boney, Kumatora and Duster.
Game and Watch: Mr. Game and Watch.
Captain Rainbow: Nick/Captain Rainbow.
Golden Sun: Isaac, Garet, Ivan, Mia, Felix, Jenna and Kraden.
Bomberman: Bomberman (white).
Murasame Castle: Takamaru.
Shin Onigashima: Donbe & Hikari.
Glover: Glover.
Chibi-Robo: Chibi-Robo and Telly.
Rayman: Rayman
Xenoblade Chronicles: Shulk, Fiora, Dunban, Riki and Reyn.
Xenoblade Chronicles 2: Rex, Pyra/Mythra, Tora and Poppi, Zeke and Pandoria.
Metal Gear Solid: Solid Snake, Raiden (or Jack) and Meryl.
Sonic the Hedgehog: Sonic, Tails, Knuckles, Chris (from Sonic X) with his Veemon (teal color), Shadow, Rouge, Omega, Amy, Cream and Cheese, Big, Espio, Vector, Charmy, Silver, Blaze, Cosmo (from Sonic X), Mighty, Ray, Jet, Storm and Wave.
Super Monkey Ball: Aiai, MeeMee, Baby and Baboon.
Billy Hatcher: Billy Hatcher, Rolly Roll, Chick Poacher and Bantam Scrambled.
Samba de Amigo: Amigo, Amiga, Linda, Bingo and Bongo, Rio, Chumba and Wumba.
The house of the dead: Zobio & Zobiko and Agent G.
Jet Set Radio: Beat and Gum.
Space Channel 5: Ulala and Pudding.
Crazy Taxi: BD Joe and Axel.
Shenmue: Ryo Hazuki, Shenhua and Nozomi Harasaki
Chuchus
Bonanza Bros: Mobo and Robo
Alex Kidd
Skies of Arcadia: Vyse, Aika and Fina
Golden Axe: Gilius
Shinobi: Joe Musashi and Hibana
Company of heroes: General Winter
Yakuza: Kazuma Kiryu and Goro Majima
Rhythm Thief & the Emperor's Treasure: Raphael/Phantom R and Marie.
Puyo pop: Amitie and Arle.
Sakura Wars: Ichiro Ogami and Sakura Shinguji.
Phantasy Star: Rolf and Nei.
Resonance of Fates: Zephyr, Leanne and Vashyron
Shantae Half-Genie Hero: Shantae, Bolo, Rottytops, Sky and Wrench.
Mega Man Series: Mega Man (Classic), Rush, Beat, Eddie, Proto Man, Bass, Roll, Mega Man X, Axl, Zero, Iris, Mega Man Volnutt, Tron, Lan and , Maylu and , Geo and Omega-Xis (Star Force Mega Man), Sonya and Lyra (Harp Note).
Pac-Man and the Ghostly Adventures: Pac-Man, Cyli, Spiral, Circumference, Blinky, Inky, Pinky and Clyde.
Tales of Symphonia: Lloyd Irving, Colette Brunel, Genis Sage, Presea Combatir, Zelos Wilder and Sheena Fujibushi.
Castlevania: Simon, Richter, Alucard, Sypha Belnades, Maria Renard and Eric Lecarde.
Banjo & Kazooie: Banjo & Kazooie, and Mumbo.
Final Fantasy VII: Cloud, Tifa, Barret, Aerith, Yuffie, Cid and Red XIII.
Final Fantasy VIII: Leon.
Final Fantasy X: Tidus and Yuna
Kingdom Hearts: Sora, Kairi, Riku and Lea (Axel's real name).
Bayonetta: Bayonetta.
Street Fighter: Ryu, Ken, Chun-Li, Guile, Cammy and Blanka.
Minecraft: Steve.
Cuphead: Cuphead and Mugman.
Splatoon: Inkling Girl and Inkling Boy.
A.R.M.S: Spring Man, Ribbon Girl and Min Min.
Tekken: Jin Kazama.
Fatal Fury: Terry Bogard and Andy Bogard.
Persona 5: Ren Amamiya (Joker), Morgana, Ryuji Sakamoto, Ann Takamaki, Yusuke Kitagawa, Makoto Niijima, Futaba Sakura, Haru Okumura, Kasumi Yoshizawa and Zenkichi Hasegawa.
Dragon Quest: Dai and Eight.
Crash Bandicoot: Crash with Aku Aku, Coco and Crunch.
Spyro the Dragon: Spyro with Sparx, Hunter, Elora, Bianca, Sheila, Sgt. Byrd, Bentley the Yeti and Agent 9.
Ape Escape: Spike, Kei and Yumi.
Earthworm Jim: Earthworm Jim.
Boogerman: Boogerman.
Battletoads: Rash.
Ristar: Ristar.
Ratchet and Clank: Ratchet with Clank and Rivet with Kit.
Jak: Jak with Daxter.
Sly Cooper: Sly Cooper, Bentley the Turtle, Murray and Carmelita.
PaRappa: PaRappa the Rapper.
MediEvil: Sir Daniel Fortesque.
Fat Princess: Fat Princess.
Little Big Planet: Sackboy.
Gex: Gex.
Croc and the Legend of the Gobbos: Croc.
Yokka-Laylee: Yooka and Laylee.
Ty the Tasmanian Tiger: Ty, Maurie, Shazza, Sly and Julius.
Uncharted: Nathan Drake.
Prototype: Alex Mercer.
InFamous: Cole MacGrath.
BioShock: Big Daddy.
Devil May Cry: Dante.
Heavenly Sword: Nariko.
Together Everywhere!: Toro Inoue.
Gravity Rush: Kat.
Starhawk: Emmett Graves.
Dead Space: Isaac Clarke.
Vectorman: Vectorman.
Q*Bert: Q*Bert.
Virtua Fighter: Akira, Jacky and Sarah Bryant.
Bloody Roar: Yugo and Alice.
Team Fortress 2: Heavy.
Ghost N Goblins: Arthur.
Darkstalkers: Morrigan, Hsien-KO and Demitri.
Viewtiful Joe: Viewtiful Joe, Sexy Silvia, Captain Blue Jr and Wild Jasmine.
Strider: Strider Hiryu.
Okami: Ameterasu and Chibiterasu.
Resident Evil: Leon Kennedy, Claire Redfield, Chris Redfield, Ashley Graham and Jill Valentine.
Mortal Kombat: Liu Kang (redeemed), Kung Lao (redeemed), Kitana (redeemed), Jade (redeemed), Nightwolf (redeemed), Stryker (redeemed), Kabal (redeemed), Smoke (redeemed), Johnny Cage, Sonya Blade, Jax Briggs, Cassie Cage, Jacqui Briggs, Takeda Takahashi, Kung Jin, Sub-Zero and Hanzo Hasashi (Scorpion previously).
Soul Calibur: Sigfried and Misturugi.
Nights into Dreams: Nights.
Klonoa: Klonoa, Hewpoe and Guntz.
Xenosaga: KOS-MOS.
Chrono Trigger: Crono, Marle and Lucca.
Bubble Bobble: Bub, Bob, Peb and Pab.
Ninja Gaiden: Ryu Hayabusa.
Conker Bad Fur Day: Conker.
Halo: Master Chief with Cortana and Arbiter.
Gears of Wars: Marcus Fenix.
Grand Theft Auto: Niko Bellic.
Red Dead: John Marston.
Plants vs Zombies: Peashooter, Sunflower, Chomper, Cactus, Kernel Corn, Citron, Rose, Torchwood, Acorn, Snapdragon, Night Cap and Wildflower.
The villains : Bowser's Brotherhood of Evil :Bowser (leader), Dry Bowser, Bowser Jr, the Koopalings, the Koopa Brothers, Kamek, Kammy, Jr. Troopa, Goomba King, Wingo, Boshi, Wario, Waluigi, Basilisx, Popple, Croco, King K. Rool, Klump, Krusha, Ganondorf, Ridley, Kraid, Sylux, Medusa, Thanatos, Pandora, King Dedede, Escargoon, Nightmare Enterprises, Wolf, Leon, Panther, Black Shadow, Blood Falcon, Giovanni, Team Rocket (Jessie, James, Meowth, Cassidy, Butch, Attila, Hun, Ariana, Archer, Proton, Petrel), Team Aqua, Team Magma, Team Galactic, Team Plasma, Team Flare, Harley, Shamus, Silver (Pokémon; Ash's new rival), Team Meanies (Gangar, Medicham and Ekans), Team Skull (Skuntank, Zubat and Koffing), Validar, Porky, Saturos, Menardi, Dickson, Liquid Snake, Revolver Ocelot, Bagura, Eggman, Metal Sonic, Orbot, Cubot, Decoe, Bocoe, Bokun, Scratch, Grounder, Coconuts, Zavok, Zazz, Zomom, Zeena, Master Zik, Zor, Lyric, Reala, Dark Raven, Dr. Bad-Boon, Dr. Roy Curien, Death Adder, Yakuza Nikishi, Boss Cass, Karlos, Risky Boots, Dr. Willy, Robot Masters, Vile, Gemini, Lord Betrayus, Dr. Buttocks, Butt-ler, Galaga Legion, Joker, Janga, Masayoshi Shido, Suguru Kamoshida, Sugimura, Cortex, Brio, Nina, Tiny, N. Gin, Dingodile, Tropy, Gnasty Gnorc, Ripto, The Sorceress, Clockwek, Raleigh, Mz. Ruby, Muggshot, General Tsao, Dr. Nefarious, Baron Praxis, Specter, Grunty, Ultratech, Wesker, Timothy, Astaroth, Firebrand, Vergil, Lord Raptor, Jedah Dohma, Grandmaster Meio, Montana Max, Elmyra Duff, Pinky and the Brain, Roderick and Rhubella Rats, Skeletor, Hordak, Mumm-Ra, Dr. Claw, Gargamel, No Heart, Commander Cobra, Chrysalis, King Sombra, Tirek, Cozy Glow, Grogar, Megatron, Starscream, Soundwave, Shockwave, Thundercracker, Thunderblast, the Shredder, Lord Zedd, Rita Repulsa, Goldar, Scorpina, Rito, King Mondo, Queen Machina, Prince Sprocket, General Venjix, Divatox, Ryagog, Elgar, General Havoc, Darkonda, Trakeena, Prince Olympius, Frax, Retinax, Nayzor, Mandilok, Zeltrax, Mesogog, Psycho Rangers (red, blue, black, yellow and pink), Red Claw, Mojo Jojo, Vilgax, Aku, Maleficent, Pete, Beagle Boys, Merlock, Magica De Spell, Big Bad Wolf, Fat Cat, NegaDuck, Megavolt, Bushroot, the Liquidator, Quackerjack, Lord Dragaunus, Chameleon, Siege, Wraith, Duke Ighthorn, Phantom Blot, Demona, Skeleton King, Doctor Doofenshmirtz, Norm, Lil' Gideon, Emperor Belos, Lilith Clawthorne, Hawk Moth, Mayura, the Evil Queen, Magic Mirror, Stromboli, Chernabog, Headless Horseman, Lady Tremaine, Lucifer, Siamese Cats, Queen of Hearts, Captain Hook, Cruella de Vil, Horace, Gaspar, Kay, Madam Mim, Kaa, Shere Khan, Prince John, Professor Ratigan, Ursula, Gaston, the Hyenas, Scar, Zira, Frollo, Hades (Disney), Shan Yu, Gantu, Experiment 625, Hämsterviel, Davy Jones, Oggie Boggie, Scroop, Bill Sykes, Rosco DeSoto, Dr. Facilier, Yzma, Kronk, Randall, Emperor Zurg, Hopper, Syndrome, the Lemons, King Gorneesh, Garland, Emperor Mateus, Cloud of Darkness, Golbez, Exdeath, Kefka Palazzo, Sephiroth, Ultimecia, Kuja, Jetch, Prophet of Truth, Atriox, Pillagers, Hostile Mobs (Minecraft), M. Bison, Orochi, Shang Tsung, Goro, Rain, Tanya, Tremor, Kano, Onaga, Tri-Borg, Master Murai, Leonard Wolf, Claudia Wolf, Xion (Bloody Roar), Dural, Nightmare (Soul Calibur), Decus, Razorbeard, DJ Octavio, Dr. Coyle, Sweet Tooth, Colonel Radec, Kazuya, Heihachi, Zeus (God of War), Salem, Cinder Falls, Edgar Zomboss, Frieza, Sorbet, Tagoma, Shisami, Raditz, Nappa, Cell, Queen Nehelenia, Amazon Quartet (VesVes, CereCere, JunJun and PallaPalla), Deep Blue, Blackbeard, Gemini Saga, Orochimaru, Younger Toguro, Mr. Akashi, Mr. Iwamoto, Kinkotsuman, Iwao, Shishio Makoto, Hisoka Morow, Bakura, Hao Asakura, Aizen, Grimmjow, Ulquiorra, Zeref, Patolli, Dio Brando, Raoh, Char Aznable, Emperor Czar Baldy Bald III, Misogi, Tomura, Kurogiri, Dabi, Toga, Muscular, Mustard, Magne, Spinner, Moonfish, Twice, Mr. Compress, Spat, Garuru, Zoruru, Tororo, Taruru, Reaper, Emperor Zarkon with Galra Empire, the Father (Homunculus), Seven Deadly Sins (Envy, Gluttony, Greed, Lust, Pride, Sloth and Wrath), Nezu, Mochida, Osamu, Saiki Kusuke, Big Cheese Seymour, Etemon, Arukenimon, Mummymon, Reapermon, Sagittarimon, Tactimon, Blastmon, Laylamon, Dark Generals (Dorbickmon, NeoMyotismon, Zamielmon, Splashmon, Gravimon, Apollomon Whispered), King Ozai, Azula, Fire Nation, Gabe, Winterbolt, Lord Voldemort (not joined yet but confirmed as future ally), Bellatrix (in the future), Mallfoy Family (included as future allies), Dolores Umbridge (after she was fired from the Magic Ministery in the future), Heartless, Corrupt Digimon.
(More will come by requests or during the updates of the fanfic : Digimon : Worlds in Danger)
