Tadashi Hamada is a fictional character who appears in Walt Disney Animation Studios' animated film Big Hero 6, which was loosely based on Marvel Comics' superhero team of the same name. Portrayed by Daniel Henney, Tadashi is ethnically Japanese. In the film, Tadashi, a student at the San Fransokyo Institute of Technology, is the creator of Baymax and the elder brother of Hiro Hamada. Baymax, as described in the film, is a personal health care companion.