Season 4

Guest Stars:

Al Sharpton, Kenny Mayne

Guest Stars:

Carmen Electra

Guest Stars:

Cheryl Hines, David Banner

Guest Stars:

Dominic Monaghan, Lil Wayne

Guest Stars:

John Daly, Quentin Tarantino, Tia Carrere

Guest Stars:

David Boreanaz

Guest Stars:

Jonathan Rhys Meyers, Evangeline Lilly

Guest Stars:

Steve-O

Guest Stars:

Bo Bice, Roselyn Sánchez, Michael Chiklis

Guest Stars:

Adewale Akinnuoye-Agbaje, Drew Lachey, Chamillionaire, Lil' Flip

Guest Stars:

Jerry Bruckheimer, Method Man, Dabier

Guest Stars:

Leslie Feist, David Gest

Guest Stars:

Jordana Brewster, Regis Philbin

Guest Stars:

Mike Epps, Jerry Rice, Mike O'Connell

Guest Stars:

Da Brat, Shad Moss, Jermaine Dupri, Martin Lawrence

Guest Stars:

Kid Rock, David Alan Grier

Guest Stars:

Jon Heder, Dwele, Rob Schneider, David Spade

Guest Stars:

Jeff Daniels, Buddy Guy, Michael Irvin

Guest Stars:

Anthony Anderson, Jessica Alba

Guest Stars:

Travis Barker, James Blunt, Mischa Barton, Shanna Moakler

Guest Stars:

Jorge Garcia, Nelly, Dan Naturman

Guest Stars:

Golden Brooks, Wilmer Valderrama, Dan Naturman, Dwight Yoakam

Guest Stars:

Damian Marley, Nick Cannon, Kathy Griffin

Guest Stars:

Daddy Yankee, Steve Coogan, Travis Lane Stork

Guest Stars:

John Daly, Freddie Prinze Jr.

Guest Stars:

Flavor Flav

Guest Stars:

Harold Perrineau, Fred Savage

Guest Stars:

Carolyn Murphy, Jack Osbourne

Guest Stars:

Steve Harvey, Shaun White

Guest Stars:

Kathie Lee Gifford

Guest Stars:

Simon Cowell, Jennifer Esposito

Guest Stars:

Cuba Gooding Jr., Mike Birbiglia

Guest Stars:

Travis Barker, Hannah Teter, Paul Walker, Shad Moss

Guest Stars:

Kelly Ripa, Tracy Morgan

Guest Stars:

Howie Mandel, Stacy Keibler

Guest Stars:

Sasha Cohen, Jamie Oliver

Guest Stars:

Johnny Knoxville, Jon Stewart

Guest Stars:

Dave Sheridan, Zooey Deschanel, Brendon Urie

Guest Stars:

Amanda Bynes, Chuck Liddell, Jamie Cullum

Guest Stars:

Elisha Cuthbert, Michael Rapaport, Matisyahu

Guest Stars:

John Lydon, Orlando Jones, Jim Gaffigan

Guest Stars:

Ice Cube

Guest Stars:

Terius 'Juvenile' Grey, John Cena, Adam Brody

Guest Stars:

Randy Jackson, Janet Reno

Guest Stars:

Justin Chambers

Guest Stars:

Yunjin Kim, Hulk Hogan

Guest Stars:

George López, Duane 'Dog' Chapman

Guest Stars:

Jamie-Lynn Sigler, Larry the Cable Guy, Gogol Bordello

Guest Stars:

Kiefer Sutherland, Rocco DeLuca

Guest Stars:

Seth Green, Anthony Jeselnik

Guest Stars:

Anthony Anderson, Pete Rose

Guest Stars:

Carmen Electra, David Gest

Guest Stars:

T.I., Tori Spelling, C. Thomas Howell

Guest Stars:

Marilyn Milian, Rebecca Romijn, T-Pain

Guest Stars:

Craig Bierko, Chris Matthews

Guest Stars:

Wilmer Valderrama, Chris Elliott

Guest Stars:

KT Tunstall, Charlie Sheen

Guest Stars:

Enrico Colantoni, Paula Abdul

Guest Stars:

Landon Donovan, Cheryl Hines

Guest Stars:

Dick Cavett, Eva Longoria

Guest Stars:

Barry Watson, Regis Philbin, Mike Birbiglia

Guest Stars:

Robert Wuhl, Natasha Henstridge

Guest Stars:

Robert Klein, LL Cool J

Guest Stars:

Guy Pearce, Ludacris

Guest Stars:

Adam Carolla, Susan Lucci, Rihanna

Guest Stars:

Adam Carolla, Kellie Pickler, Joseph R. Gannascoli

Guest Stars:

Jenny McCarthy, Seth MacFarlane

Guest Stars:

Jared Leto, Ian McKellen

Guest Stars:

Chris O'Donnell, Paul Teutul, Jr.

Guest Stars:

Isaiah Washington, Kathie Lee Gifford

Guest Stars:

Jared Leto, Famke Janssen

Guest Stars:

Ashley French, Martin Fry, Carl Reiner

Guest Stars:

Reggie Bush

Guest Stars:

Jamie Kennedy, Daryl Hannah, Johnathan Rice

Guest Stars:

Jimmy Bennett, Nick Lachey, Jesse Jackson

Guest Stars:

J.J. Abrams, Dominic Monaghan

Guest Stars:

Katherine Heigl, Chandra Wilson, Ben Lee, James Pickens Jr.

Guest Stars:

Christina Milian, Malcolm David Kelley, Drew Carey

Guest Stars:

Huey Lewis, Teri Hatcher

Guest Stars:

Artie Lange, Sarah Silverman

Guest Stars:

Jim Cramer, Sarah Silverman

Guest Stars:

Jason Ritter, Julia Stiles

Guest Stars:

Jon Favreau, Mike Iaconelli

Guest Stars:

Brett Ratner, Dane Cook

Guest Stars:

Paget Brewster, Ice Cube

Guest Stars:

Larry the Cable Guy, Jessica Alba

Guest Stars:

Rosie Perez, Jared Hess

Guest Stars:

John C. Reilly, Gary Gulman

Guest Stars:

Jaime Pressly, Xzibit

Guest Stars:

Luke Perry, Jean Smart, Huey Lewis

Guest Stars:

Jack Black

Guest Stars:

Fiona Apple

Guest Stars:

Anthony Bourdain, Ozzy Osbourne

Guest Stars:

Phil Gordon, Bonnie Hunt

Guest Stars:

Geena Davis, Jeff Corwin, Louis C.K.

Guest Stars:

Mariah Carey, Rob Zombie

Guest Stars:

Jamie Kennedy, Meagan Good, Jason Alexander

Guest Stars:

Tommy Lee, Greg Fitzsimmons

Guest Stars:

George Foreman

Guest Stars:

Jason Gray-Stanford, Kathy Griffin

Guest Stars:

Dwyane Wade, Edward Burns

Guest Stars:

Shaun Alexander, Tracy Morgan

Guest Stars:

Matt Dallas, Lance Armstrong

Guest Stars:

Brittany Murphy, Danica Patrick

Guest Stars:

Terrell Owens, Rainn Wilson

Guest Stars:

Fred Willard, Shawn Wayans, Marlon Wayans

Guest Stars:

Rhymefest, Anna Faris, Robin Williams

Guest Stars:

Morgan Spurlock, Allison Janney

Guest Stars:

Jesse Metcalfe, Rosario Dawson

Guest Stars:

Gene Simmons, Jeff Ross

Guest Stars:

Jon Cryer, Jarno Laasala

Guest Stars:

Regis Philbin, Pharrell Williams, Trevor Fehrman

Guest Stars:

Flavor Flav, Leslie Bibb, Ben Harper

Guest Stars:

Jewel, Sandra Oh

Guest Stars:

Cheryl Hines, Russell Peters, Shaun White

Guest Stars:

Will Ferrell, Bobby Cannavale

Guest Stars:

Matt Dillon, Ziggy Marley, Justin Long

Guest Stars:

Kenan Thompson, Jonathan Winters

Guest Stars:

Obie Trice, Paul Reubens, Jules Sylvester

Guest Stars:

Elisha Cuthbert, Samuel L. Jackson

Guest Stars:

Heidi Klum, Dave Navarro

Guest Stars:

Hilary Duff, Chuck Liddell

Guest Stars:

Tommy Chong

Guest Stars:

Anthony Michael Hall, Joan Rivers, Melissa Rivers

Guest Stars:

Jay Chandrasekhar, Kevin Nealon

Guest Stars:

Tommy Lee, Wayne Brady

Guest Stars:

Jimmie Johnson, Michael Rapaport, Wayman Tisdale, Jo Koy

Guest Stars:

Lauren Holly, Vinny Parco

Guest Stars:

Toby Keith, Ron Livingston

Guest Stars:

Anthony Michael Hall, Amy Yasbeck, Callie Thompson, James Carville

Guest Stars:

Jason Statham, Tyra Banks, Papa Roach

Guest Stars:

Orlando Bloom, Emily Deschanel, Lyfe Jennings

Guest Stars:

Chingy, Diane Lane

Guest Stars:

Rachel Bilson, Chris Elliott, LeToya Luckett

Guest Stars:

Sarah Silverman, Lionel Richie

Guest Stars:

Xzibit, Zach Braff

Guest Stars:

Lupe Fiasco, Bam Margera, Dwayne Johnson

Guest Stars:

Felicity Huffman, Jet Li

Guest Stars:

Kim Raver, Johnny Knoxville

Guest Stars:

Clay Aiken, George López

Guest Stars:

Jon Heder

Guest Stars:

Anthony Anderson, Evangeline Lilly, Ludacris

Guest Stars:

Eva Longoria, Artie Lange

Guest Stars:

Jordana Brewster, Dax Shepard

Guest Stars:

Emilie de Ravin, Dane Cook

Guest Stars:

Jessica Simpson, Carlos Mencia

Guest Stars:

Andy Dick, Diora Baird

Guest Stars:

America Ferrera, Jason Lee

Guest Stars:

Ruben Studdard, Wanda Sykes

Guest Stars:

Rod Stewart, Robin Williams

Guest Stars:

Kate Walsh, Justin Timberlake

Guest Stars:

John Stamos, Bobcat Goldthwait

Guest Stars:

Anne Heche

Guest Stars:

Xzibit, Jennifer Tilly, Ted Danson

Guest Stars:

Lloyd Banks, Terry Bradshaw

Guest Stars:

Kathy Griffin, Shawnee Smith, Meat Loaf

Guest Stars:

Sharon Osbourne, Josh Radnor

Guest Stars:

Joseph Cross, Roseanne Barr

Guest Stars:

Val Kilmer

Guest Stars:

Ricardo Chavira, Anita Baker, Lauren Graham

Guest Stars:

Tony Hawk, Sean Combs

Guest Stars:

Lady Sovereign, Julia Louis-Dreyfus

Guest Stars:

Don Rickles, Nick Carter, Aaron Carter

Guest Stars:

Geraldo Rivera, Pamela Anderson

Guest Stars:

Tracy Morgan, Jerry Springer, Akon

Guest Stars:

Brittany Murphy, Shia LaBeouf, John Legend

Guest Stars:

Sherrod Small, Marla Sokoloff, Greg Kinnear

Guest Stars:

Ricky Martin, Billy Crystal

Guest Stars:

Teri Hatcher

Guest Stars:

Jay-Z, Regis Philbin

Guest Stars:

Wilmer Valderrama, Michael Irvin, Chris Daughtry

Guest Stars:

Jenny Lewis, Todd Glass, Taye Diggs

Guest Stars:

Rachel Weisz, Jenny Lewis, Chi McBride

Guest Stars:

Tichina Arnold, Elijah Wood

Guest Stars:

David Alan Grier, Tatum O'Neal, Lily Allen

Guest Stars:

Peter Falk, Shad Moss, Thandiwe Newton, Chris Brown

Guest Stars:

Tom Arnold, Jo Frost, Corinne Bailey Rae

Guest Stars:

Mary J. Blige, Ted Danson

Guest Stars:

Jessica Biel, Mario Batali, Fantasia Barrino

Guest Stars:

Shawn Wayans, Marlon Wayans, Eric Dane

Guest Stars:

Ryan Seacrest, Beck

Guest Stars:

Nas, Forest Whitaker, Howard Stern

Guest Stars:

Matthew Fox

Guest Stars:

Giovanni Ribisi, Adam Carolla

Guest Stars:

Sylvester Stallone, Cee Lo Green, Danger Mouse

Guest Stars:

Matthew McConaughey, Tom Odell, John Oates, Daryl Hall, Tracy McGrady

Guest Stars:

Gerard Way