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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. One day, Hiro challenges mobster and crime boss Mr. Yama and wins by tricking 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.

Worried that Hiro is wasting his potential, Tadashi takes his brother to the lab at his university—the San Fransokyo Institute of Technology—where Hiro meets Go Go Tomago, Wasabi, Honey Lemon, and Fred. 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. Amazed by the students' projects, Hiro decides to apply there. With help from his friends and Tadashi, Hiro invents Microbots, swarms of miniature robots he can control telepathically with a neural-cranial transmitter, in order to gain admission at an annual exhibition. Callaghan is very impressed by the Microbots and offers Hiro an invitation to the school. Alistair Krei, owner of the technology giant Krei Tech, is also impressed after his assistant had told him to take a look at Hiro's invention and offers to buy them, but Hiro refuses as Callaghan advised him it was better to continue developing them. Callaghan then gives Hiro the official invitation letter, making Hiro's family and friends leave and celebrate Hiro's success.

Hiro and Tadashi stay behind to talk for a short while as Hiro thanks his brother for believing in him. However, a fire suddenly breaks out in the exhibition and a student tells the Hamada brothers that Professor Callaghan is still inside. Due to this, Tadashi rushes in to rescue him as he said someone has to help. Hiro decides to go inside as well, but the building explodes before he can, so Tadashi (and presumably Callaghan) is killed. As a result of losing his brother, 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 started, but Hiro feels more inclined to go back into bot-fights. While Hiro stares at his Megabot, 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, so Baymax thinks it is trying to go somewhere while Hiro thinks it is only malfunctioning because every other Microbot was destroyed in the fire. Still, 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, 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, where they discover that someone has been mass-producing Hiro's Microbots, but are soon attacked by a masked man controlling the Microbots telepathically.

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 that moment, Baymax's battery runs low so Hiro is forced to take him back home. After charging up, Baymax learns Tadashi had died and wants to help Hiro overcome his grief by calling his friends, but Hiro instead tells him he would improve if they could apprehend the masked man. He then realizes he can use Baymax to achieve this and upgrades the robot with a battle armor and karate moves, which he learns through a special chip created by Hiro. Back at the warehouse, they see it was left empty from any trace and at that moment, the Microbot starts twitching again, which both follow until they find the masked man at the harbor. Hiro and Baymax are also surprised by Go Go, Wasabi, Honey, and Fred, who did receive Baymax's message and tried to help Hiro as well. When the masked man discovers and attacks them, they flee in Wasabi's car being chased all over town until they are thrown to the bottom of the bay.

With the car sunk, 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 suggesting it can only be Alistair Krei behind it all. Hiro denies this, saying Krei is too high-profiled. Baymax then reveals he had scanned the masked man's vitals, so Hiro decides to upgrade Baymax further to scan the entire city to find him. Hiro also builds super-suits for himself and his friends to help avenge Tadashi by arresting the masked man.

After building and testing each of their suits, Hiro and Baymax fly around the city, 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 test went awry when one of the portals became unstable and the test pilot disappeared into it. Because of this, they supported Fred's theory that Krei is the masked man. When the masked man appears, they try to steal his mask, where they deduce the transmitter is located. They eventually succeed in unmasking him and learn he is actually Professor Callaghan, who explains he intentionally set the fire to steal Hiro's Microbots. Believing Tadashi died for nothing, Hiro angrily removes Baymax's healthcare chip and tells him to destroy Callaghan. The gang is able to stop Baymax and reinsert his chip, but Callaghan escapes in the process. Angry at them for intervening, Hiro leaves with Baymax. He tries to remove Baymax's healthcare chip once more, but breaks down when Baymax asks him if killing Callaghan will make him feel better. Baymax then plays recordings of Tadashi during Baymax's development. Hiro realizes that killing Callaghan would be against Tadashi's wishes and makes amends with his friends.

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 uses it to destroy Krei Tech's new headquarters. The heroes arrive and battle Callaghan, destroy the Microbots and take the mask from him. However, the portal remains active and becomes increasingly unstable. As everyone runs away, Baymax detects life within the portal. Realizing it must be Abigail, Hiro and Baymax rush in to save her. However, debris inside the portal damages Baymax's armor and the only way to save Hiro and Abigail is to send them through with his rocket fist. Hiro refuses to leave Baymax behind, but Baymax convinces him it is the only option. Tearfully, Hiro states he is satisfied with his care and Baymax deactivates. Hiro and Abigail make it back through the portal and Callaghan is arrested. Later, as Hiro settles into Tadashi's old lab, he discovers Baymax's health care chip in the rocket fist. He rebuilds Baymax's body and reactivates him, then the two embrace each other. The six friends continue their exploits through the city, helping those in need.

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 pushes the wall and discovers a secret door open that reveals a secret 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 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]


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.
    • 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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