Big Hero 6: The Series

Big Hero 6: The Series is an American superhero comedy animated television series, produced by Disney Television Animation and developed by Kim Possible creators Mark McCorkle and Bob Schooley. The series is based on Disney's 2014 film Big Hero 6, which itself is loosely based on the comic book series Big Hero 6 published by Marvel Comics. The series is a sequel as it takes place after the events of the film and uses traditional hand-drawn animation. It premiered with a 43-minute episode titled "Baymax Returns" on Disney XD on November 20, 2017. In 2018, the series was moved from Disney XD to Disney Channel before the series premiere. The series formally premiered with two new episodes on Disney Channel on June 9, 2018.

Plot
The series is set after the events of the feature film Big Hero 6 and continues the adventures of 14-year-old tech genius Hiro Hamada and the compassionate, cutting-edge robot Baymax created by his late brother Tadashi. Along with his friends Wasabi, Honey Lemon, Go Go and Fred, they form the superhero team Big Hero 6 and embark on high-tech adventures as they protect their city from an array of scientifically enhanced villains. Hiro also faces academic challenges and social trials as the new prodigy at San Fransokyo Institute of Technology (SFIT).

The show slightly retcons the ending of the movie. Among the differences are Aunt Cass knowing about Baymax, the Big Hero 6's team identities still being secret from the public, and Hiro attending SFIT as if everything is back to normal (and though a building is erected after Tadashi, Hiro does not receive a grant from the Institute). Hiro also does not come up with the name "Big Hero 6" like it is implied at the end of the movie, instead Fred comes up with the name after having "brainstormed an epic list of team names" and testing them with himself.

Returning

 * Ryan Potter as Hiro Hamada, a 14-year-old robotics prodigy whose older brother Tadashi Hamada was killed in an explosion at the San Fransokyo Institute of Technology (SFIT) and member of Big Hero 6; he serves as the team's official leader.
 * Scott Adsit as Baymax, an inflatable robot originally built by Tadashi as a medical assistant, but reprogrammed by Hiro to also use martial arts as a member of Big Hero 6; wears a suit of armour with a jetpack and wings. In "Obake Yashiki", Adsit has also voiced Mr. Ohare, the owner of a haunted house attraction called "Mr. Ohare's House of Scares".
 * Jamie Chung as Go Go Tomago, a tough, athletic student at SFIT and member of Big Hero 6 who specializes in electromagnetics; uses two large discs as wheels/skates when in action, and also uses smaller discs as weapons.
 * Genesis Rodriguez as Honey Lemon, a bubbly and optimistic student at SFIT (and Part-Time Student at SFIA or San Fransokyo Institution of Art), chemistry enthusiast, and member of Big Hero 6; she uses chemical 'bombs' that produce a variety of effects.
 * Khary Payton as Wasabi, a smart, slightly neurotic student at SFIT and member of Big Hero 6 who specializes in lasers, and has two laser-like blades on his arms when in action. He appreciates order and control in his life and work environment. Wasabi was voiced by Damon Wayans Jr. in the film.
 * Brooks Wheelan as Fred, a comic book fan and slacker who is also team mascot at SFIT and member of Big Hero 6, using a suit that gives the appearance of a lizard-like monster; he lives in a large mansion. Fred was voiced by T.J. Miller in the film.
 * Maya Rudolph as Aunt Cass, Hiro and Tadashi’s aunt and guardian. She is obsessed with cooking new and strange dishes and is oblivious to Hiro's double life.
 * David Shaughnessy as Heathcliff, Fred's family butler, who assisted the team in their training efforts.
 * Alan Tudyk as Alistair Krei, a pioneer entrepreneur and CEO of Krei Tech. He is revealed to know Big Hero 6's secret identities after they saved his life in the film.
 * Paul Briggs as Mr. Yama, a notorious gangster working under Obake and Hiro's arch-nemesis.
 * Stan Lee as Boss Awesome / Frederick Frederickson III, Fred's Dad and a former superhero from back in the 70's. While his real name has never been said, his son is revealed to be Frederick Frederickson IV, hinting at his actual name.
 * Laura Silverman as Krei's assistant, a capable and sarcastic woman who is always at Krei's side. She was a silent character in the movie, but speaks for the first time in the series.
 * Daniel Henney as Tadashi Hamada, Hiro's late older brother who built Baymax and was killed by Professor Callaghan. He appears in a recording in "Baymax Returns", "Failure Mode" and "The Bot Fighter". He also appears in a flashback in "Mini-Max". He appears physically in "Obake Yashiki", but later turns out to be just an illusion created by augmented reality which made Hiro to believe that Tadashi is alive.
 * James Cromwell as Yokai / Professor Robert Callaghan, the former head of SFIT turned villain. He is currently incarcerated and he has completely repented for what he has done in the film.
 * Charlotte Gulezian as the Ringleader, Yama's right-hand woman.

Introduced in the series

 * Jenifer Lewis as Professor Grace Granville, the stern new head of the robotics program at SFIT who despises procrastination and deep down sees potential in Hiro. She was the former mentor of Bob Aken (now known as Obake) during her first teaching career at SFIT. She is later revealed to know Big Hero 6's secret identities, figured it out by herself.
 * Andrew Scott as Obake / Bob Aken, a mysterious villain who serves as the main antagonist of the first season. Once he was an exceptionally young student at SFIT under Granville before he left the school after a freak accident caused him brain damage, which led him to became an insane, villainous figure, obsessed with destroying San Fransokyo and recreate the city in his image. He sees Hiro as the younger version of himself and ultimately wants him to be his student.
 * Haley Tju as Karmi, a biology student at SFIT who has a rivalry with Hiro, but is in love with his alter ego.
 * John Michael Higgins as Mini-Max, Fred's robot sidekick. Hiro actually built him to make sure Fred does not get into any trouble.
 * Andy Richter as Globby / Dibs, a former loser thief who mutated into a blob-like being after being exposed to an unstable mixture of chemicals from Honey Lemon's chem purse in combination with an experimental neurotransmitter that allows him to alter his molecular structure. He later becomes one of Obake's cohorts and reforms by joining Big Hero 6 near the end.
 * Naoko Mori as Momakase, a professional thief and chef who uses cooking blades as weapons. She later aligns herself with Obake following her defeat by Big Hero 6.
 * Lucas Neff as Noodle Burger Boy, the fast food mascot of Noodle Burger who is was actually an unused military robot built to analyze and counter. He is reprogrammed for evil by Obake.
 * Diedrich Bader as Bluff Dunder, a news reporter for San Fransokyo. Known for his somewhat pompous delivery.
 * Bader also voices Felony Carl, a reoccurring former criminal who possesses a very insightful mind. His nickname was apparently given to him by his mother and he is 42 years old.
 * Susan Sullivan as Mrs. Frederickson, Fred's wealthy socialite mother who is embarrassed by her son's antics, but loves him nonetheless.
 * Sean Giambrone as Richardson Mole, an eleven year old fanboy and Fred's arch-rival in pursuing pop culture artefacts. He has an open crush on Go Go.
 * John Ross Bowie as Dr. Mel Meyers, a scientist working under Krei and who also despises him for misusing his creation.
 * Jeff Bennett as Baron Von Steamer, a steampunk based villain and arch-enemy of Boss Awesome.
 * Katy Mixon as Barb, the mother of Juniper and part of the electricity powered duo High Voltage.
 * Sophie Reynolds as Juniper, the daughter of Barb and part of the electricity powered duo High Voltage.
 * Gordon Ramsay as Bolton Gramercy, an arrogant chef and Cass' idol.
 * Alton Brown as Yum Labouché, a famous chef and judge in the underground cooking competition.
 * Jon Rudnitsky as Ned Ludd, a former real estate developer who turned against technology and now lives in the Muirahara Woods.
 * Rob Riggle as Jack / Greg, the leader of the Mad Jacks, a team of high-octane black op mercenaries all named Jack. He is Caucasian with blonde hair.
 * Kevin Michael Richardson as Jack, the muscleman of the Mad Jacks. He is African-American.
 * Kerri Kenney as Jaq, a brunette who is the Mad Jacks' only female member.
 * Patton Oswalt as Mr. Sparkles, a selfish and egotistic psychopath who was a game web-show host of Maximum Insane Obstacle Challenge before turning to a life of crime. The character originated from the film's original concept art.
 * Andy Daly as Dr. Trevor Trengrove, a prolific scientist who is actually a plagiarist and former partner to Wendy Wower.
 * Riki Lindhome as Wendy Wower, a children's entertainment scientist and Trengrove's former partner.
 * Jeanne Sakata as Lenore Shimamoto, a famous artist from San Fransokyo's early years whose scientific research is sought by Obake.
 * Mara Wilson as Liv Amara, self made 23 year old billionaire and the CEO to Sycorax.
 * Christy Carlson Romano as Trina, a young bot-fighter who befriends Hiro before being revealed as a criminal and Obake's robot daughter.
 * Fred Tatasciore as Orso Knox, a businessman who was somehow turned into a monster.

Development and production
In March 2016, Disney announced that a Big Hero 6 television series was in development and premiered on Disney Channel in 2017. The series takes place immediately after the events of the film and is created by Kim Possible's Mark McCorkle and Bob Schooley, and executive produced by McCorkle, Schooley and Nick Filippi. The show was reportedly pitched by McCorkle and Schooley shortly following the film's release. Talking to Leonard Maltin for the podcast Maltin on Movies, Scott Adsit suggested an early 2018 release date.

In March 2016, it was revealed that Jamie Chung reprises her role as Go Go and that following November, it was revealed that most of the cast members from the film would reprise their roles, including Ryan Potter, Genesis Rodriguez, Scott Adsit, Alan Tudyk, and Maya Rudolph. Khary Payton replaced Damon Wayans Jr. as Wasabi and Brooks Wheelan replaced T. J. Miller as Fred. On January 6, 2017, Disney Channel released an official teaser trailer for the series.

On March 14, 2017, it was renewed for a second season, ahead of the series premiere.

Overview
A series of short-form episodes began airing on the Disney Channel YouTube channel on May 31, 2018. Three animated shorts called Baymax Dreams premiered September 15, 2018 simultaneously on Disney Channel and YouTube. The shorts are computer animated and made through Unity.

Broadcast
Baymax Returns premiered on Disney Channel channels in Canada on November 20, 2017 and in the UK and Ireland on November 30, 2017.

The series formally premieres with two new episodes on Disney Channel on June 9, 2018, followed by two more new episodes on June 10, 2018, with weekly premieres every Saturday through September starting on June 16, 2018 with episodes airing at 7 a.m. starting on September 8.