The following is a list of fictional characters from Disney's 2014 feature film adaptation of Big Hero 6, as well as its follow-up television shows Big Hero 6: The Series and Baymax! and its subsequent comic book adaptation through IDW Publishing, based on characters created by Steven T. Seagle and Duncan Rouleau (credited to Man of Action) and published by Marvel Comics.
While the titular characters originated from Marvel Comics, their characterizations and supporting cast were newly invented by Disney, making their appearance a radical departure from the source material.
Film introductions
Hiro Hamada
Hiro Hamada is a 14-year-old technology prodigy who initially planned to use his mental brilliance to con others through back alley bot fighting. Through the advice and swaying of his older brother Tadashi, Hiro decided to join San Fransokyo Institute of Technology and put his brain to work. However, tragedy struck when Tadashi perished in a fire. From this, Hiro decided to use his smarts to form a team with his friends and lead Big Hero 6.
Hiro is loosely based on Hiro Takachiho and is voiced by Ryan Potter in all forms of media.
Baymax
Baymax is an inflatable health care robot that was created by Tadashi Hamada. Baymax's only function has been to help people not just physically, but mentally and emotionally as well. After Tadashi's death, Baymax felt that his purpose is now to help Tadashi's younger brother Hiro. Equipped with "10,000 different medical procedures", various forms of martial arts, but a loose grasp of common thinking, Baymax does all he can to rescue people in more ways than one.
Baymax is loosely based on the character of the same name and is voiced by Scott Adsit in all forms of media.
Honey Lemon
Honey Lemon is a chemist who enjoys what she does. While somewhat maniacal and eccentric, she deeply cares for her friends and does everything she can to bring optimism to the group. She does not necessarily think violence is the answer to everything, but she will throw herself into the fight when needed.
Honey Lemon is loosely based on Aiko Miyazaki and is voiced by Genesis Rodriguez in all forms of media.
Go Go Tomago
Ethel "Go Go" Tomago is a sarcastic adrenaline junkie who prefers working with electromagnets. She is really a team player. When fighting, she comes off as the most experienced due to her background, but prefers to fight alongside her team.
Go Go is loosely based on Leiko Tanaka and is voiced by Jamie Chung in all forms of media.
Wasabi
Wasabi is an expert in laser technology, but is an OCD neat freak who prefers to have systems and order in favor of chaos and spontaneity. While he is apparently cowardly, he pulls through for his friends and occasionally shows a flare for the heroic life much to everyone's and his own shock.
Wasabi is loosely based on Wasabi-No-Ginger and is voiced by Damon Wayans Jr. in the film and Khary Payton in other forms of media.
Fred
Frederick Flamarian "Fred" Frederickson IV is a total comic book nerd who, despite being the son of a billionaire, spends his time as a sign flipping school mascot who is a "science enthusiast". Armed with a kaiju costume dubbed "Fredzilla" and his knowledge of comic book lore, his antics amuse, annoy and aid his friends on the team.
Fred is loosely based on the character of the same name and is voiced by T.J. Miller in the film and Kingdom Hearts III and Brooks Wheelan in the series.
Tadashi Hamada
Tadashi Hamada was the older brother to Hiro and, just like him, displayed a knack for understanding and building various forms of technology. He built Baymax for the sole purpose of helping people, but was unable to see this to fruition due to his early death. His death sets in motion a series of events that would lead Hiro to forming the Big Hero 6.
Tadashi is voiced by Daniel Henney in all forms of media.