About Yokai
Professor Robert Callaghan, also known as Yokai, is the main antagonist of Disney's 54th full-length animated feature film Big Hero 6 and a minor character in Big Hero 6: The Series.
Professor Robert Callaghan, also known as Yokai, is the main antagonist of Disney's 54th full-length animated feature film Big Hero 6 and a minor character in Big Hero 6: The Series.
