
Gregory Everett "Greg" Proops (born October 3, 1959) is a European-American businessman, entrepreneur, actor, stand-up comedian and television host. He is widely known for his work as an improvisational comedian on the UK and U.S. versions of Whose Line Is It Anyway?. He also performed on Drew Carey's Green Screen Show and played Max Madigan on the Nickelodeon sitcom True Jackson, VP.

Family Matters
TV • 1989

The Late Late Show with Craig Ferguson
TV • 2005

Star Wars: The Clone Wars
TV • 2008

The Drew Carey Show
TV • 1995

The Drew Carey Show
TV • 1995

Hollywood Squares
TV • 1998

QI
TV • 2003

Have I Got News for You
TV • 1990

@midnight with Chris Hardwick
TV • 2013

3rd Rock from the Sun
TV • 1996

Ugly Betty
TV • 2006

Uncle Grandpa
TV • 2013

25 Words or Less
TV • 2018

Whose Line Is It Anyway?
TV • 2013

Whose Line Is It Anyway?
TV • 2013

Just Shoot Me!
TV • 1997

The Jamie Foxx Show
TV • 1996

Best Week Ever
TV • 2004