
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.

Star Wars: Episode I - The Phantom Menace
1999 · as Fode (voice)

The Nightmare Before Christmas
1993 · as Harlequin Demon / Devil / Sax Player (voice)

Brother Bear
2003 · as Male Lover Bear (voice)

Duck Duck Goose
2018 · as Banzou (voice)

Hell and Back
2015 · as Asmoday (voice)

Super High Me
2007 · as Self

Bad Actress
2011 · as Barry

Misery Loves Comedy
2015 · as Self

Dr. Dolittle: Million Dollar Mutts
2009 · as Poodle (voice)

Geri
1999 · as Self

Rat Bastard
2000 · as Roscoe Rodent (voice)

Filth!
1994 · as Himself

Drew Carey's Improv All Stars
2001 · as Self

Largo
2008 · as Self

Izzy Lyon: The Unspun Truth
2022 · as Brian Culero

TURA!
2025 · as Self

Shepard
2020 · as Williams

Bagboy!
2002 · as Sirol (voice)