The character of Baymax appeared in Big Hero 6 which stars Ryan Potter. He was created by Steven T Seagle and the American, Duncan Rouleau.
Big Hero 6 (film) | starring | Ryan Potter Duncan Rouleau | nationality | Americans Baymax | creator | Duncan Rouleau Baymax | creator | Steven T. Seagle Baymax | series | Big Hero 6 (film)