Alan Wray Tudyk (born March 16, 1971) is an American stand-up comedian, actor, voice artist, and comedian. He is the voice of Alistair Krei in Big Hero 6 and Big Hero 6: The Series. In the series, he also voices other background characters.
In 2004, Tudyk appeared in the film I, Robot along with James Cromwell. Tudyk has also contributed to different Disney projects, such as Star vs. the Forces of Evil, Wreck-It Ralph and its sequel Ralph Breaks the Internet, Zootopia, Moana and Frozen.
Other appearances of him include Rogue One: A Star Wars Story as K-2SO, DodgeBall: A True Underdog Story, a cameo in Deadpool 2, and voice of The Joker in the 2019 animated TV show Harley Quinn.