Elemental Warriors
Jake Long: The main protagonist, Warrior of Dragon and the leader of the Elemental Warriors.
Lan Hikari (From Megaman Battle Network): Warrior of Metal and a hot-blooded robotics expert.
Mayl Sakurai (From Megaman Battle Network): Warrior of Light and Lan's childhood friend.
Shiro Yogeki (White Bomber): Warrior of Fire and an Elite Bomberman.
Max Yogeki (Bomberman Max): Warrior of Water who is created to be Shiro's assistant.
Ciel (From Skygunner): Warrior of Lightning and Leader of the Skygunners.
Copain (From Skygunner): Warrior of Wind and Ciel's best friend and second-in-command of the Skygunners.
Femme (From Skygunner): Warrior of Wood and the only female of the Skygunners.
9-Volt (From WarioWare): Warrior of Psychic and a hyperactive Nintendo fanboy.
Mona (From WarioWare): Warrior of Earth and the bass player for the Hot Slices.
Gemerl (From Sonic the Hedgehog): Warrior of Darkness and former Robot Kingdom Soldier.
Usui Horokeu (Horohoro from Shaman King): Warrior of Ice and a Nature Preserving Snowboarder.
Danny Fenton (Danny Phantom): Warrior of Ghost who the other Warriors have to search for back on Earth.
Red Savarin (From Solatorobo: Red the Hunter): Warrior of the Sun who controls the Sun's elements: Fire, Lightning, Earth, Wood, Light, and Metal. He is also a Caninu Hunter who does various tasks and requests for money.
Haruhi Suzumiya: Warrior of the Moon who controls the Moon's elements: Water, Ghost, Psychic, Dark, Ice, and Wind. An energetic, optimistic, yet anti-social girl who wants to meet all sorts of mysterious beings and join in many supernatural phenomena.
Sissel (From Ghost Trick): The pet deuteragonist. He is not an Elemental Warrior, but he is the Princess of Auroria's pet cat sent to help the Elemental Warriors.
Elemental Archfiends
Higeki (Hige Hige Bandit from Bomberman): Archfiend of Metal, oldest "brother" of Team Robo, and the leader of the Elemental Archfiends.
Poultro (Poulet from Skygunner): Archfiend of Wind and Team Robo's middle "brother".
Kolby (Servbot from Megaman Legends): Archfiend of Lightning and Team Robo's youngest "brother".
Maddie Valentine (Maiden in Love from Yu-Gi-Oh! GX): Archfiend of Light and an alluring seductive Maiden.
Jean Descole (From Professor Layton): Archfiend of Earth and mad scientist/archaeologist.
Pandora (From Megaman ZX): Archfiend of Ice and Prometheus' younger sister. A Reploid with a quiet personality.
Prometheus (From Megaman ZX): Archfiend of Ghost and Pandora's older brother. A psychotic, bloodthirsty Reploid.
Wolf O'Donnell (From Starfox): Archfiend of Darkness and the most ferocious Archfiend.
Cackletta (From Mario and Luigi Series): Archfiend of Wood. A Bean Witch prone to hysterical outbursts.
Ultros (From Final Fantasy 6): Archfiend of Water. Provides comedy relief besides Team Robo.
Bowser (From Super Mario Series): Archfiend of Fire. Also provides comic relief and is Ultros' partner.
Dimentio (From Super Paper Mario): Archfiend of Psychic and the most humorous, if not insane Archfiend.
King (From Megaman and Bass): King of The Robot Kingdom and the main antagonist.
Miscellaneous Characters
Chocolat Gelato (From Solatorobo: Red the Hunter): Red's adoptive little sister and a Caninu Pomeranian who is usually the one to get Red out of trouble.
Elh Melizée (From Solatorobo: Red the Hunter): Red's co-worker as a Hunter and a Felineko American Shorthair who is often mistaken for a boy.
Rose: Jake's girlfriend and Former Huntsgirl.
Shout (From Bomberman Jetters): Shiro's co-worker and supervisor at the Bomber Noodle House.
Rosalina: Princess of Auroria and Sissel's caretaker.