Celebrity Guest Stars Getting Involved In The Chaos | Whose Line Is It Anyway?

A compilation of celebrity guest appearances on Whose Line Is It Anyway?, hosted by Aisha Tyler with regular cast members Ryan Stiles, Wayne Brady, and Colin Mochrie. Featured guests include Mel B, Chris Hardwick, Bill Nye, Verne Troyer, and Penn and Teller, each joining the cast in short-form improv games and scenes.