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This page is for Big Hero 6 (film), information. For other uses, see Big Hero 6 (disambiguation).

Big Hero 6 is an American 3D computer-animated superhero-comedy film directed by Don Hall and Chris Williams, produced by Walt Disney Animation Studios and distributed by Walt Disney Pictures. The film is inspired by the Marvel comic book series "Big Hero 6."

The first look footage was released on May 9, 2013 and showed the film's setting, the fictional futuristic hybrid metropolis called San Fransokyo, a portmanteau of San Francisco and Tokyo. A teaser trailer was released on May 22, 2014 and the first full trailer was shown on July 15, 2014.

Big Hero 6 premiered on October 23, 2014 as the opening film at the Tokyo International Film Festival and the world premiere of the film in 3D took place at the Abu Dhabi Film Festival on October 31, 2014. The film's premiere in the United States was at the El Capitan Theatre in Hollywood, California on November 5, 2014.

The film was then released theatrically on November 7, 2014 in the United States, Canada, India, Vietnam, and Indonesia; December 26, 2014 in Australia and New Zealand; and January 30, 2015 in the United Kingdom and Ireland.


In the city of San Fransokyo, Hiro Hamada is a young robotics genius who spends his time participating in back alley bot-fights, which are extremely illegal for gambling. One night, Hiro challenges mobster and crime boss, the undefeated Mr. Yama, and wins by hustling him, making Yama furious and ordering his henchmen to beat up Hiro, who is saved by his older brother Tadashi before the thugs can harm him.

Escaping on Tadashi's scooter, both are soon arrested by the San Fransokyo Police Department along with everyone involved in the fight, but Hiro and Tadashi are released shortly afterwards when their aunt Cass bails them out and takes them back to Lucky Cat Café, their house.

Tadashi is concerned that Hiro is wasting his potential with the bot-fighting. To redirect him, he takes his brother to the lab at his university—the San Fransokyo Institute of Technology—where Hiro meets Tadashi's friends Go Go Tomago, a tough-as-nails biker who specializes in electro-mag-suspension, Wasabi, a neat freak who specializes in lasers, Honey Lemon, a happy-go-lucky artist who specializes in chemical compounds, and Fred, the school mascot and comic fanboy responsible for everyone's nicknames. Tadashi then shows Hiro his latest project; a personal healthcare robot named Baymax. Hiro also meets Professor Robert Callaghan, the head of the robotics program. Tadashi's plan works when Hiro is amazed by the students' projects and decides to apply for the school. With help from his friends and Tadashi, Hiro get the inspiration he needs to invent Microbots, swarms of miniature black robots controlled telepathically with a neural-cranial transmitter to combine themselves into any shape and form to serve infinite functionality, in order to gain admission at an annual exhibition. Hiro's presentation goes off like fireworks and Alistair Krei, tycoon, lord, and master of the technology giant Krei Tech, is impressed after his assistant directs him to take a look. Krei takes a closer look and offers to buy them, but Hiro refuses as Callaghan advises him it is better to continue developing them, and that Mr. Krei has made reckless decisions to get where he is. Callaghan then hands Hiro the official invitation letter on the spot, and they all depart to celebrate Hiro's success.

Hiro and Tadashi stay behind to talk for a second as Hiro thanks his brother for believing in him. However, a fire suddenly breaks out in the exhibition hall and a student tells the Hamada brothers that Professor Callaghan is still inside. Tadashi rushes in to rescue him, but Hiro holds him back. However, Tadashi ultimately rushes inside anyway, saying "Someone has to help". Inspired by his brother's words after dropping his hat, Hiro decides to go inside as well, but the building explodes before he can and Tadashi (and presumably Callaghan) is killed in the blast.

Months after the loss of both his brother and would-be professor, Hiro falls in depression and withdraws from others. One day, Cass tells Hiro he would still be allowed to join SFIT, even though it has been a while since classes have started, but Hiro feels more inclined to go back into bot-fights. Even though Tadashi's friends send Hiro a video message, Hiro ultimately refuses SFIT's invitation and returns to bot-fighting full-time. While Hiro prepares his Megabot for battle, the bot falls apart and stubs Hiro's toe, inadvertently activating Baymax, who soon tries to help Hiro against his will. Hiro soon discovers a twitching Microbot inside his hoodie's pocket, which Hiro doesn't understand since the microbot is attracted to the rest of the swarm, which was destroyed in the fire. Hiro dismisses it as broken and proceeds to make repairs to the Megabot. After close examination, Baymax concludes it is trying to go somewhere. Hiro absent-mindedly suggests he finds out where the bot's trying to go and Baymax follows the Microbot after Hiro said it would help improve his state. Though Hiro was only being sarcastic on the command, he sees Baymax had actually left the building, so he follows him all over town to stop him until both arrive to an abandoned warehouse. There, Hiro actually becomes intrigued and both go inside to investigate, where they discover that Hiro's Microbots were not destroyed, but stolen and replicated into an army. When the robots activate, they are attacked by a costumed man hidden behind a kabuki mask controlling the Microbots telepathically and narrowly escape.

Realizing that the mysterious man stole them, Hiro tries reporting this to Sergeant Gerson, but Hiro's story was too crazy for him to believe. At the moment he tries having Baymax show proof, his operating system becomes glitchy when his battery runs low and Hiro is forced to take him back home. After charging up, Baymax learns about Tadashi's death and wants to help Hiro overcome his grief. So, he downloads a database on personal loss, and proceeds with one of the procedures by calling his friends. Hiro feels better thanks to Baymax's treatments and he comes to the conclusion that the fire was never an accident, but rather an attack by the masked man who set the fire to steal them and cover his tracks. Wanting revenge, Hiro vows to find him and avenge Tadashi.

Understanding that apprehending the man in the mask will improve Hiro's emotional state, Baymax follows Hiro to his garage workshop where he upgrades the robot with carbon fiber battle armor and karate moves, which he learns through a special chip. After combat practice (and learning the nature of a fistbumb), Hiro and Baymax head back to the warehouse, only to find the building is totally empty. However, they do have a trace when the Microbot starts twitching again. They both follow the bot until they find the masked man at the harbor and prepare to take him on. Hiro and Baymax are also surprised to see Go Go, Wasabi, Honey, and Fred, who received Baymax's message and try to help Hiro as well. While they share their feelings, the masked man discovers and attacks them. They flee in Wasabi's car and are chased all over town until they are thrown to the bottom of the bay.

With the car sunk and the masked man thrown off their scent, Fred offers the gang to stay at his family mansion, where they are greeted by Fred's butler Heathcliff. Inside Fred's room, the gang start to ponder about the identity of the masked man, with Fred concluding it can only be Alistair Krei since Hiro refused the sale of his microbots at the showcase. Hiro denies this, saying Krei is too high-profiled to be a supervillain. Baymax then reveals he had scanned the masked man's vitals during the car chase, so Hiro decides to upgrade Baymax further to scan the entire city to find him. Hiro also builds battle-suits for himself and his friends to help avenge Tadashi by apprehending the masked man.

After building and testing each of their suits, Hiro and Baymax fly around the city on a joyride, much to Hiro's thrill. After taking a break to enjoy the view, Baymax's super sensor is fully operational, scanning everyone and subsequently locating the masked man on a quarantined island. There, the group discovers a former Krei Tech lab that was experimenting with teleportation technology. The security footage reveals the test went awry when one of the portals became unstable and the test pilot disappeared into it, never to be seen again. Because of this, they support Fred's theory that Krei is the masked man, who stole Hiro's microbots to steal his machine back. When the masked man appears, they try to steal his mask, where they deduce the transmitter is located. The battle proves lengthily and difficult without any real strategy, but they eventually succeed in unmasking him (albeit through a clumsy mishap leading to dumb luck) and to their horror, learns he is actually Professor Callaghan, who explains he intentionally set the fire to steal Hiro's Microbots and Tadashi died simply as collateral. Believing Tadashi died for nothing, Hiro's anger escalates into a thirst for vengeance. To this end, he removes Baymax's healthcare chip, discards it, and orders him to destroy Callaghan. Without his healthcare protocol, Baymax is reduced to a bloodthirsty killing machine and relentlessly shreds apart the lab intent on killing Callaghan while the rest of the gang does what they can to stop him.

They are able to stop Baymax and reinsert his chip seconds before Baymax can launch a kill-blow with his rocket fist at Callaghan, and he escapes. Baymax regains his consciousness, claiming that his healthcare protocol has been violated. Furious at them for intervening, Wasabi and Gogo explain that the kind of execution Hiro just tried to commit was never what they signed up for when they agreed to help him. Fiercely regretting letting Tadashi's friends help him, Hiro orders Baymax to find Callaghan to no avail due to his enhanced scanner being damaged in the fight. Hiro leaves with Baymax, stranding the rest of the gang on the island. Back at the garage, Baymax does a scan and notes that Hiro is enraged due to his raised blood pressure. After making the repairs, he tries to remove Baymax's healthcare chip once more, but Baymax refuses access to his data port in order to get through to Hiro. When he explains what Tadashi built him for and asks whether or not killing Callaghan will make him feel better, Hiro breaks down at the gut-wrenching truth that Tadashi is gone forever. To soothe Hiro's fragile emotional state, Baymax then plays recordings of Tadashi's comical trial-and-error procedures during Baymax's development. After seeing his brother for the first time in months, Hiro realizes that giving into vengeance would be against his wishes and makes amends with his friends when they arrive back home. After examining more footage of the portal test, they discover that the test pilot was Callaghan's daughter Abigail and realize that Callaghan is seeking revenge on Krei, whom he blames for her presumed death.

Using the Microbots, Callaghan repairs the portal device and captures Krei during the unveiling of his new corporate headquarters. Callaghan proceeds with his master plan to use it to destroy Krei Tech's new headquarters while Krei watches, the afterwards, make him meet the same fate. The heroes arrive and battle Callaghan, but still lack any real strategy or feasible way to defeat him. The gang is captured and Hiro is almost sucked into the portal along with the building. However, Hiro finally comes up with a viable plan and the heroes break free; instead of going for the mask in order to render the bots powerless, they decide to attack the bots directly until they're all sucked up into the portal and Callaghan has nothing to fight with. They succeed and destroy the mask, but the portal remains active and becomes increasingly unstable. As everyone runs away to escape the inevitable blast, Baymax detects life within the portal. Realizing it must be Abigail, Hiro and Baymax rush in to bring her home. On the other side, Hiro and Baymax find themselves transported to an interdimensional ethereal void with no exits, and things only become more dangerous when they have to weave their way through an asteroid field of Krei Tech debris.

They manage to navigate through the field safely and reach Abigail, who is still alive thanks to her pod's life support stasis mechanisms. As they make their way back to the gateway, Baymax accidentally flies into an incoming asteroid. He shields Hiro and Abigail, but the impact wrecks Baymax's armor and his thrusters. With time running out and no other way, Baymax decides to use his rocket fist as an emergency propulsion system for the pod that would send them both back to Earth. Unfortunately, doing so will mean Baymax will be left behind in the void. Hiro refuses to leave Baymax behind, claiming that he can't lose him too, but Baymax convinces him it is the only option and that he will always be with him. Tearfully, Hiro and Baymax share a hug and states he is satisfied with his care. The rocket fist activates and it sends Hiro and Abigail back through the portal while the kickback from the fists ignition sends Baymax drifting off, disappearing into the void forever. Hiro and Abigail make it back to Earth in just the nick of time before the portal explodes and the mission is completed as the authorities arrive. Back on Earth, the heroes watch from the top of the San Fransokyo Tribune building as Abigail is taken to the hospital for further observation and Callaghan is dragged into police custody for his crimes against Krei Tech, SFIT, and Hiro. Back at the Lucky Cat Cafe, Hiro has victory breakfast with his friends before they depart for SFIT, to which Hiro has registered for. Hiro settles into Tadashi's old laboratory, and he discovers Baymax's healthcare chip in the rocket fist. With Tadashi's chip in perfect condition, Hiro is able to rebuild Baymax's body and reactivates him, then the two embrace each other. Afterwards, the six friends continue their exploits through the city as superheroes, helping those in need as Big Hero 6.

In a post-credits scene, Fred, back at his mansion, talks to a photo of his father, wishing he was there so Fred could talk about the recent events. Fred then touches the wall and discovers a secret door, revealing a hidden lair containing weapons, armor, and superhero gear. Fred's father then arrives and embraces his son with a hug, then tells him they have a lot to talk about.


The DVD / Blu-Ray of the film divides it in 16 parts.

  1. Hustle
  2. Nerd School
  3. Showcase
  4. Tragedy
  5. A New Friend
  6. Being Helpful
  7. Upgrade
  8. The Chase
  9. Fred's House
  10. Training
  11. Secret Lair
  12. Big Reveal
  13. Putting It All Together
  14. Saving The Day!
  15. The Portal
  16. End Credits


Character Voice Actor Notes
Hiro Hamada Ryan Potter
Baymax Scott Adsit
Go Go Tomago Jamie Chung
Wasabi Damon Wayans, Jr.
Fred T.J. Miller
Honey Lemon Génesis Rodríguez Also in the Latin American Spanish dub
Tadashi Hamada Daniel Henney
Robert Callaghan/Yokai James Cromwell
Aunt Cass Maya Rudolph
Alistair Krei Alan Tudyk
Heathcliff David Shaughnessy
Mr. Yama Paul Briggs
Ringleader Charlotte Gulezian
Abigail Callaghan Katie Lowes
Desk Sergeant Daniel Gerson
General Abraham Benrubi
Newscaster Billy Bush
Fred's Dad Stan Lee
Yama's Thugs Additional Voices
Male Technician 1 Dan Howell U.K. only
Male Technician 2 Phil Lester

U.K. only

Additional Voices Roy Conli
Marcella Lentz-Pope



The film has received generally favorable reviews from film critics and moviegoers. The film currently holds a 'Fresh' rating of 89% on Rotten Tomatoes, signifying great reviews.[3]

Possible sequel

On February 18, 2015, the film's directors, Don Hall and Chris Williams, said that the thought of working with the characters again some day definitely has its appeal.[4] On March 2015, Génesis Rodríguez told MTV "There's nothing definitive. There's talks of something happening. We just don't know what yet."[5] On April of the same year, Stan Lee commented "After Ant-Man, we're going to start playing around with Doctor Strange, the Black Panther, the Inhumans, and then we have to come back for Guardians of the Galaxy 2, Big Hero 6, the Avengers, Captain America..."[6]

Later in August 2015, Roy Conli announced that Big Hero 6 would appear in the video game Kingdom Hearts III and said the story would take place after the events of the film.[7] However, the television series, Big Hero 6: The Series was announced in March 2016 as the official sequel, with the pilot "Baymax Returns" premiering on November 20, 2017 and taking place immediately after the film's events.

On August 2017, when asked if there was any active development for a sequel besides the series, Roy Conli commented "Yeah. Don and Chris are working on a new project. We haven't... We revisited it for a while and chose to kind of step back and let it settle for a while." Conli also said "They really have other stories that they want to tell, so they're thinking that they're going to take a little break right now and continue to work on a new story, and hopefully revisit it sometime. I think we all love it." As for the involvement of Big Hero 6 in Kingdom Hearts III, Conli said "We really felt that it was great opportunity to recreate a new story, as opposed to fitting into the story that was there."[8]



  • Big Hero 6 is the 54th Disney animated feature film.
  • The original theatrical run played the short film Feast before the actual movie.
  • The film mainly draws from the 2008 Big Hero 6 comic series, where Wasabi No-Ginger and Fred first appeared, replacing Silver Samurai and others.[9]
  • Although it is based on a Marvel comic of the same name, there are many changes, including character names, the setting, the ethnicities of characters, the backstories, and several plot points:
    • Several characters don't appear in the film due to copyright issues, and many others like Tadashi and Yokai are original creations with no comic counterparts.
    • The character originally known as Wasabi No-Ginger was a mutant, but for the film he is a regular human as 20th Century Fox owned the right to Marvel's "mutant" term at the time. He also has his last name officially dropped in the film, and is simply referred to as Wasabi. Many official Disney merchandise and sites, however, still refer to him as "Wasabi No-Ginger".
  • Steven T. Seagle and Duncan Rouleau aren't directly credited for creating the original Big Hero 6. Instead, their company Man of Action is given credit for it. However, Chris Claremont and David Nakayama (who created Fred and Wasabi and redesigned the rest of the characters) are not credited at all.
  • The production team decided early on not to connect the film to the Marvel Cinematic Universe and instead set the film in a stand-alone universe.
    • This universe was officially classified as Earth-14123 within Marvel's Multiverse system; the original Big Hero 6 were part of Earth-616, the mainstream Marvel Comics Universe.
  • The Korean dub of the film has many changes, most of which remove the Japanese implications of the film to avoid offending Korean audiences:
    • The title of the film is simply Big Hero so people wouldn't think it's a sequel.
    • Hiro and Tadashi are renamed Hero Armada and Teddy Armada.
    • Japanese text and imagery is changed to English or removed.
  • Several other international dubs also change the title of the film. Few examples include Japan, where it is simply called "Baymax" (ベイマックス); in Brazil it is called "Operation Big Hero" (Operação Big Hero), and in Russia it is called "City of Heroes" (Город героев).
  • Daniel Howell and Phil Lester from the British radio show Dan and Phil voice the technicians at Krei's portal test in the British version of the film.[10]
  • This is the first Disney animated feature to show the studio logos in the beginning, and the main title, the closing credits sequence and the studio logos at the end.
    • At the beginning, the logo combo was similar to the previous film Frozen, but the logo's music is heard instead of the opening song (That plays over it.)
    • At the end, the logo combo was the same as Frozen.
  • This is the first Walt Disney Animation Studios feature to have the "Created and Produced at Walt Disney Animation Studios, Burbank, California" credit at the end until Encanto was the last to feature that.
    • Pixar does the same thing in the ending credits in all of their movies.

Easter Eggs

The film features different sorts of references to other films and media.


  • Like in other Marvel films, Stan Lee made a cameo. In the film he was Fred's father, a former superhero.
  • Several Marvel characters appear in Fred's room: Sleepwalker, Torpedo, Whizzer, Black Talon and Manphibian appear as costumes. Orka is a costume as well, but also appears as a mug.
  • The comic which Hiro reads at Fred's room is Marvel Premiere #32 and features Monark Starstalker in the cover.
  • The comic which Go Go holds is Marvel Premiere #39, and features Torpedo in the cover.
  • When Hiro first visits SFIT, there is a student resembling Tony Stark who is trying rocket boosters on his cat.
  • Hiro and Baymax's first flight through San Fransokyo is reminiscent of the scene in Iron Man where Tony Stark tests his Mark II suit.


Like in other Disney films, characters from other Disney properties make cameos.

  • Honey Lemon's phone case is based off Nick Wilde from Zootopia. Nick also appears on a billboard in the city.
  • When Hiro is talking with his aunt, there is a picture behind him of Mochi wearing a Stitch costume.
  • Pillows of Stitch and Splodyhead can be seen on Fred's bed.
  • On Hiro's desk, there is a replica of EVE's head.
  • Many easter eggs from Wreck-It Ralph can be spotted:
    • A Wreck-It Ralph figurine on top of Hiro's computer screen.
    • Ralph is also seen in a billboard advertisement out in the city.
    • Armors from the fictional video game "Hero's Duty" that appeared in Wreck-It Ralph can be seen as a toy in Hiro's room, and as a full-scale armor in Fred's room.
    • Figures of Baby Cy-Bugs also appear in both bedrooms.
    • Saitine is also a costume in Fred's room.
    • On the same area 1011001 can be seen as well.
    • Fred has arcade cabinets of Motor Racing and District 51 (fictional games seen in Wreck-It Ralph) in his room.
      • District 51 itself is a parody of Area 51, a video game by Atari.
  • Several easter eggs from Frozen can also be seen:
    • Hans is seen on a wanted poster at the police department and as a statue at Fred's house.
    • A silhouette of Elsa is seen only in the Korean version of the film, on a wall at Hiro's house.
    • A statue of Olaf can be spotted in the city.
    • There is a framed picture of the kingdom of Arendelle (where Frozen takes place) in Fred's house.
    • An Arendelle ship can be seen when Hiro and Baymax take their first flight.
  • Photos of Bolt and Ester from the film Bolt appear on Sergeant Gerson's desk.
  • In Fred's family mansion there is a framed picture of Maximus, the horse from Tangled.
  • During the end-credits a small billboard shows an octopus resembling the sushi chef from Monsters, Inc.
  • A sticker of Oswald the Lucky Rabbit is seen on the ceiling when Baymax looks down at Hiro.
  • Feast is referenced in a graffiti that reads "Φst" (pronounced phist/feast).
  • When Hiro mentions Callaghan invented the "Callaghan-Catmull spline", the surname Catmull is referencing Edwin Catmull, one of Pixar's founders.
    • At the SFIT showcase, characters based on Catmull, Steve Jobs and John Lasseter (all three founders of Pixar) appear briefly.
  • The infamous "A113" easter egg is spotted when Hiro designs the Baymax 2.0 armor.


  • Hiro has a NES controller plugged to his computer.
  • An early draft of the film included Mr. Sparkles as another villain. Though he was ultimately unused, a poster of him still appears in Hiro's bedroom.
  • One of Honey Lemon's concept designs appears on a billboard from the city.
  • A figure resembling a Dalek from Doctor Who can be seen on Hiro's shelf.
  • Fred has several masks on his bedroom that resemble Kamen Rider and Power Rangers helmets.
  • In the end-credits, a billboard with Domo-kun's face is seen.
  • Also in the credits, the poster with the "Animation Supervisors" tag has characters that resemble anime characters from Samurai Pizza Cats and Gundam.
  • Honey Lemon's torch blow has the dragon from the Dragon Ball logo in it, shown blowing fire and with crossed eyes.
  • Aunt Cass is watching Frankenstein when Hiro and Baymax sneak out, and the famous quote "It's alive... It's alive!" from the film is heard.
  • A yellow McMaster-Carr book is seen near the end before Hiro discovers Baymax's chip.
  • When Aunt Cass goes to Hiro's room to give him a plate of food, an Ultraman figure with a large head can be seen.


Read transcript here.


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