<P> Back home, Hiro tries to remove the healthcare chip again, but Baymax stops him and states that vengeance is not what Tadashi would have wanted . To calm him down, Baymax shows Hiro videos of Tadashi running numerous tests during Baymax's development as a demonstration of Tadashi's benevolence and legacy . Hiro remorsefully apologizes to his friends, who reassure him they will catch Callaghan the right way . </P> <P> Video footage from the laboratory accident reveals that the lost test pilot was Callaghan's daughter Abigail, and that Callaghan is seeking revenge on Krei . Callaghan interrupts Krei at a public event and attempts to destroy his headquarters using Krei's teleportation portal . After a lengthy battle, the team deprives Callaghan of his microbots and the mask, saving Krei, but the portal remains active . Baymax detects Abigail inside, alive but in hyper - sleep, and leaps into the portal with Hiro to rescue her . They find Abigail's pod, but on the way back out, Baymax is struck by debris, damaging his armor and disabling his thrusters . Baymax uses his armor's rocket fist to propel Hiro and Abigail back through the portal before it closes . Callaghan is arrested while Abigail is taken to the hospital . </P> <P> Some time later, Hiro discovers Baymax's health care chip clenched in the rocket fist . He rebuilds Baymax's body, and the six friends continue their exploits throughout the city . During the end credits, a series of newspaper headlines reveals that the university has awarded Hiro a grant and dedicated a building in Tadashi's honor, and that the team has continued protecting the city . In a post-credits scene, Fred discovers a hidden cache of superhero equipment in his family mansion . His father, a retired superhero, returns from vacation and says, "We have a lot to talk about ." </P> <Ul> <Li> Ryan Potter as Hiro Hamada, a 14 - year - old robotics prodigy . Speaking of the character, co-director Don Hall said "Hiro is transitioning from boy to man, it's a tough time for a kid and some teenagers develop that inevitable snarkiness and jaded attitude . Luckily Ryan is a very likeable kid . So no matter what he did, he was able to take the edge off the character in a way that made him authentic, but appealing". </Li> <Li> Scott Adsit as Baymax, an inflatable robot built by Tadashi as a medical assistant . Hall said, "Baymax views the world from one perspective--he just wants to help people, he sees Hiro as his patient". Producer Roy Conli said "The fact that his character is a robot limits how you can emote, but Scott was hilarious . He took those boundaries and was able to shape the language in a way that makes you feel Baymax's emotion and sense of humor . Scott was able to relay just how much Baymax cares". </Li> <Li> Daniel Henney as Tadashi Hamada, Hiro's older brother and Baymax's creator . On Hiro and Tadashi's relationship, Conli said "We really wanted them to be brothers first . Tadashi is a smart mentor . He very subtly introduces Hiro to his friends and what they do at San Fransokyo Tech . Once Hiro sees Wasabi, Honey, GoGo, and Fred in action, he realizes that there's a much bigger world out there that really interests him". </Li> <Li> T.J. Miller as Fred, a comic - book fan who is also a team mascot at San Fransokyo Institute of Technology . Speaking of Miller, Williams said "He's a real student of comedy . There are a lot of layers to his performance, so Fred ended up becoming a richer character than anyone expected", both literally and metaphorically . </Li> <Li> Jamie Chung as Go Go, a tough, athletic student who specializes in electromagnetics . Hall said "She's definitely a woman of few words . We looked at bicycle messengers as inspiration for her character". </Li> <Li> Damon Wayans Jr. as Wasabi, a smart, slightly neurotic youth who specializes in lasers . On the character, co-director Chris Williams said "He's actually the most conservative, cautious--he (sic) the most normal among a group of brazen characters . So he really grounds the movie in the second act and becomes, in a way, the voice of the audience and points out that what they're doing is crazy". </Li> <Li> Genesis Rodriguez as Honey Lemon, a chemistry enthusiast at San Fransokyo Institute of Technology . Williams said "She's a glass - is - half - full kind of person . But she has this mad - scientist quality with a twinkle in her eye--there's more to Honey than it seems". </Li> <Li> James Cromwell as Professor Robert Callaghan, the head of a robotics program at San Fransokyo Institute of Technology who becomes an extremely powerful masked supervillain . According to film merchandising, this supervillain alter ego is named "Yokai". </Li> <Li> Alan Tudyk as Alistair Krei, a pioneer entrepreneur, tech guru, and the CEO of Krei Tech and is always on the hunt for the next big thing . </Li> <Li> Maya Rudolph as Aunt Cass, Hiro and Tadashi's aunt and guardian . </Li> <Li> Stan Lee as Fred's father . Lee's likeness was used for the character . </Li> <Li> Katie Lowes as Abigail Callaghan, the daughter of Professor Callaghan and a test pilot for Krei Tech . </Li> <Li> Daniel Gerson as Sergeant Gerson, the desk sergeant for the San Fransokyo Police Department . </Li> <Li> Paul Briggs as Yama, a notorious gangster who seeks revenge after Hiro defeats his robot in a clandestine robot fight with illegal betting . </Li> <Li> Billy Bush as a newscaster </Li> </Ul>

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