Michael Christopher Sheen is a Welsh actor, voice actor, and director. He is well known for his roles in several films and television, such as David Frost in the 2008 biographical drama Frost/Nixon and Dr. William Masters in the Showtime drama Masters of Sex.
For Tim Burton, he voiced Nivins McTwisp in the 2010 Disney fantasy adventure film, Alice in Wonderland and its 2016 sequel, Alice Through the Looking Glass.