Baymax is the deuteragonist of Disney's 2014 animated feature film, Big Hero 6. He is an inflatable robot
created by Tadashi Hamada to serve as a personal healthcare companion. Following Tadashi's death, Baymax was inherited by Hiro Hamada, with whom he became a member of the superhero team known as Big Hero 6.
He is based on the Marvel character of the same name from the Marvel Comics Series, Big Hero 6.