The unpredictable actor boasts a prolific resume of films and voiceover work that's often outshined by his "Busey-isms."

This former physical education teacher found himself a regular at Atlanta's Punchline Comedy Club open mics and never looked back.

Nick began his career in his hometown of Boston and two years later he made the jump to New York, where he found his seething, sarcastic style was welcomed with open arms.

The largest selling comedy-recording artist in history, Jeff is a multiple Grammy Award nominee and best selling author of 11 books.

Socially provocative and broadly funny, this stand-up is a regular at top New York City clubs like the Gotham Comedy Club and the Comedy Cellar.

Keith exploded into the national consciousness with his response to the Sept. 11 attacks "Courtesy of the Red, White and Blue (The Angry American)" and is a regular guest on The Colbert Report.

Dubbed by The New York Times as the "Lovable Queen of Mean," for her no-holds-barred ability to make people laugh at their own stereotypes and differences.

This television mainstay released a biography in 2008, Here's the Story: Surviving Marsha Brady and Finding My True Voice and recently appeared on VH1's Celebrity Fit Club.