Hiro Hamada

Big Hero 6

Big Hero 6

A thirteen-year-old inventor in San Fransokyo, orphaned young and raised by his aunt Cass. After his brother Tadashi dies in a fire, he teams with Baymax and four friends as Big Hero 6, unmasks Professor Callaghan as the villain Yokai, and later revives Baymax.

Timeline 7 events

  1. 2031 · Big Hero 6: Shortly after graduating high school at thirteen, Hiro takes up illegal bot fighting.
  2. 2032 · Big Hero 6: Tadashi takes Hiro to the San Fransokyo Institute of Technology, and Hiro wins admission with his microbots.
  3. 2032 · Big Hero 6: A fire at the showcase kills Tadashi and, apparently, Callaghan, and Hiro falls into grief.
  4. 2032 · Big Hero 6: Hiro accidentally wakes Baymax and discovers that a masked man called Yokai stole the microbots.
  5. 2032 · Big Hero 6: Hiro upgrades his friends and Baymax into the team Big Hero 6.
  6. 2032 · Big Hero 6: Hiro unmasks Yokai as Callaghan and later spares him during the portal fight at Krei's institute.
  7. 2032 · Big Hero 6: Baymax is lost in the portal, and Hiro later finds his chip and rebuilds him.

allied with

Baymax, Honey Lemon, Go Go Tomago, Wasabi-No Ginger, Fred

enemy of

Robert Callaghan

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Last checked 22 Oct 2026