Baymax is the deuteragonist of Disney's 54th full-length animated feature film Big Hero 6, as well as Big Hero 6: The Series. He is also the titular main character of the Disney+ original series Baymax!.
He is a robot member of Big Hero 6 who was given a special battle armor by Hiro Hamada to become an active fighter. He is based on the Marvel character of the same name from the Marvel comic, Big Hero 6.
Baymax was created by Scott Lobdell, Gus Vazquez, Bud LaRosa, Duncan Roleau and Steven S. Seagle.