Michael McDonald

234 episodes

Aries Spears

210 episodes

Debra Wilson

204 episodes

Bobby Lee

Various,

184 episodes

Mo Collins

162 episodes

Nicole Sullivan

154 episodes

Will Sasso

, Various

137 episodes

Phil LaMarr

134 episodes

Frank Caliendo

117 episodes

Stephnie Weir

117 episodes

Alex Borstein

108 episodes

Nicole Parker

97 episodes

Ike Barinholtz

97 episodes

Keegan-Michael Key

97 episodes

Jordan Peele

80 episodes

Pat Kilbane

75 episodes

Crista Flanagan

74 episodes

Arden Myrin

74 episodes

Mary Scheer

67 episodes

David Herman

67 episodes

Ron Pederson

48 episodes

Paul Vogt

48 episodes

Orlando Jones

42 episodes

Daniele Gaither

42 episodes

Artie Lange

42 episodes

Craig Anton

42 episodes

Bryan Callen

42 episodes

Johnny A. Sanchez

33 episodes

Nelson Ascencio

29 episodes

Christian Duguay

29 episodes

Andrew Bowen

25 episodes

Andrew Daly

25 episodes

Lisa Kushell

25 episodes

Jill-Michele Meleán

25 episodes

Chris Hogan

25 episodes

Josh Meyers

25 episodes

Pablo Francisco

22 episodes

Frank Caeti

22 episodes

Tim Conlon

22 episodes

Nicole Randall Johnson

22 episodes

Anjelah Johnson-Reyes

8 episodes

Hayley Erin

8 episodes

Jeff Probst

6 episodes

Nicole Sullivan

5 episodes

Tommy Davidson

4 episodes

Ashley Edner

4 episodes

Bret Hart

3 episodes

Susan Sarandon

3 episodes

Ja Rule

3 episodes

Patricia Stratigeas

3 episodes

Ken Jeong

3 episodes

James Kyson

3 episodes

Fred Willard

3 episodes

David Arquette

3 episodes

Patrick Fugit

3 episodes

Tom Bergeron

3 episodes

Menina Fortunato

3 episodes

Snoop Dogg

3 episodes

Kato Kaelin

2 episodes

Michael Buffer

2 episodes

Neve Campbell

2 episodes

Billy Barty

2 episodes

Pauly Shore

2 episodes

David Faustino

2 episodes

Jennifer Lyons

2 episodes

Barry Williams

2 episodes

LL Cool J

2 episodes

Carmen Electra

2 episodes

Halle Berry

2 episodes

Mark Hamill

2 episodes

Ashley Tisdale

2 episodes

John Mahoney

2 episodes

Martin Short

2 episodes

Dean Collins

2 episodes

Vitamin C

2 episodes

Tyra Banks

2 episodes

Tony Shalhoub

2 episodes

Jay-Z

2 episodes

Tommy Lee

2 episodes

Tony Hawk

2 episodes

Stan Lee

2 episodes

Missy Elliott

2 episodes

Cody Klop

2 episodes

Nicole Richie

2 episodes

Jon Heder

2 episodes

Mandy Moore

2 episodes

Vivica A. Fox

2 episodes

Soren Fulton

2 episodes

DMX

2 episodes

George Carlin

2 episodes

Bobby Edner

2 episodes

Murphy Lee

2 episodes

Dulé Hill

2 episodes

Erica Hubbard

2 episodes

Chingy

2 episodes

Eva Longoria

2 episodes

Andy Dick

2 episodes

Rodney Dangerfield

2 episodes

Method Man

2 episodes

Don Cheadle

2 episodes

Daran Norris

2 episodes

Gary Coleman

2 episodes

Tom Green

2 episodes

Aaron Carter

2 episodes

Alex Borstein

2 episodes

Mathew St. Patrick

2 episodes

Bryan Cranston

2 episodes

Dakota Fanning

2 episodes

Michael Clarke Duncan

2 episodes

Anthony Anderson

2 episodes

John Cleese

2 episodes

Chris Isaak

2 episodes

Joe Walsh

1 episode

Jean Speegle Howard

1 episode

Peter Werner

1 episode

Peter Dennis

1 episode

RuPaul

1 episode

Rip Taylor

1 episode

Tony Orlando

1 episode

Michelle Clunie

1 episode

Arjay Smith

1 episode

Whoopi Goldberg

1 episode

David Anthony Higgins

1 episode

Jazzmun

1 episode

Bruce McCulloch

1 episode

Trevor Einhorn

1 episode

Joe Pichler

1 episode

Daniele Gaither

1 episode

Kevin McDonald

1 episode

Joe Rogan

1 episode

French Stewart

1 episode

Harry Connick Jr.

1 episode

Andrea Martin

1 episode

Brian Bosworth

1 episode

Michael Reisz

1 episode

Queen Latifah

1 episode

Bobcat Goldthwait

1 episode

Thomas Calabro

1 episode

Ike Turner

1 episode

Isaac Mizrahi

1 episode

Ryan Stiles

1 episode

Daisy Fuentes

1 episode

Leila Arcieri

1 episode

Jim Meskimen

1 episode

La Toya Jackson

1 episode

Dweezil Zappa

1 episode

Phyllis Diller

1 episode

Anna Nicole Smith

1 episode

Lou Diamond Phillips

1 episode

Pam Grier

1 episode

Maile Flanagan

1 episode

Robert Englund

1 episode

Shaquille O'Neal

1 episode

Brian McKnight

1 episode

Keri Russell

1 episode

Donny Osmond

1 episode

Eliana Alexander

1 episode

Jesse Ventura

1 episode

Illeana Douglas

1 episode

Rene Russo

1 episode

Debbie Harry

1 episode

Q-Tip

1 episode

Marc Anthony

1 episode

Joe Brown

1 episode

Steve Borden

1 episode

Garry Marshall

1 episode

Jennette McCurdy

Cassidy Gifford

1 episode

Jay Roach

1 episode

Chyna

1 episode

Alison Sweeney

1 episode

Flea

1 episode

Devon Alan

1 episode

Lennox Lewis

1 episode

David Boreanaz

1 episode

Freddie Prinze Jr.

1 episode

Cindy Margolis

1 episode

Chris Kirkpatrick

1 episode

Andrew Bowen

1 episode

Christopher Titus

1 episode

Tony Danza

1 episode

Brian McFayden

1 episode

Paul Michael Lévesque

1 episode

Amanda Bynes

Herself

1 episode

Chris Klein

1 episode

Brandon Molale

1 episode

Shakira

1 episode

Earthquake

1 episode

Melina Kanakaredes

1 episode

Amanda Bearse

1 episode

Preston Lacy

1 episode

Eve Plumb

1 episode

Brian Dunkleman

1 episode

Mark Hoppus

1 episode

Oprah Winfrey

1 episode

Jim Rome

1 episode

Michael Madsen

1 episode

Ryan Seacrest

1 episode

Countess Vaughn

1 episode

Jordan Black

1 episode

Tom Arnold

1 episode

Steve-O

1 episode

LeVar Burton

1 episode

Jada Pinkett Smith

1 episode

Jessica Alba

1 episode

Orlando Jones

1 episode

Anthony Hamilton

1 episode

John C. McGinley

1 episode

Sara Rue

1 episode

Shane Mosley

1 episode

Aisha Tyler

1 episode

Anna Faris

1 episode

Bill O'Reilly

1 episode

Eddie Guerrero

1 episode

Vanessa Williams

1 episode

Cedric the Entertainer

1 episode

Ben McKenzie

1 episode

Frankie Muniz

1 episode

Cole Petersen

1 episode

Kaitlin Sandeno

1 episode

Christina Milian

1 episode

Wanya Morris

1 episode

James Brown

Himself

1 episode

Yasmine Hanani

1 episode

Colby Donaldson

1 episode

Bo Bice

1 episode

Artie Lange

1 episode

Michael Cera

1 episode

Ryan Reynolds

1 episode

Katie Cassidy

1 episode

Freddy Rodríguez

1 episode

Pamela Anderson

1 episode

Christopher Meloni

1 episode

Jennifer Candy

1 episode

Jeff Garlin

1 episode

Michael Rapaport

1 episode

Michael McDonald

1 episode

Jaime Pressly

1 episode

Alyson Hannigan

1 episode

Jason Mraz

1 episode

John Cho

1 episode

John Leguizamo

1 episode

Xzibit

1 episode

Howie Mandel

1 episode

John Cena

1 episode

Nelly Furtado

1 episode

Seth MacFarlane

1 episode

Danny DeVito

1 episode

Robin Williams

1 episode

Mary Lynn Rajskub

1 episode

Kate Walsh

1 episode

Gwen Stefani

1 episode

Danny Bonaduce

1 episode

Rob Corddry

1 episode

Adam Copeland

1 episode

Jamie Kennedy

1 episode

Leah Remini

1 episode

Carl Edwards

1 episode

Perez Hilton

1 episode

Ne-Yo

1 episode

Lise Simms

1 episode

Peter Marshall

1 episode

Roy Jones Jr.

1 episode

Lawrence Mandley

1 episode

Scott Wolf

1 episode

Ann Walker

1 episode

Quincy Jones

1 episode

Mary Elizabeth McGlynn

1 episode

Brian Austin Green

1 episode

Chris Hardwick

1 episode

Claudia Schiffer

1 episode

Harland Williams

1 episode

Christina Applegate

1 episode

Ice-T

1 episode

Tom Kenny

1 episode

Sandra Bernhard

1 episode

Sandra 'Pepa' Denton

1 episode

Don Most

1 episode

Ahmet Zappa

1 episode

Kevin Sorbo

1 episode

Roddy Piper

1 episode

Mary Scheer

1 episode

Lisa Loeb

1 episode

Desmond Llewelyn

1 episode

Tim Robbins

1 episode

Regis Philbin

1 episode

Catherine O'Hara

1 episode

Jacklyn Zeman

1 episode

Richard Schiff

1 episode

Richard Lewis

1 episode

Robert Zemeckis

1 episode

Ray Allen

1 episode

Bob Newhart

1 episode

JC Chasez

1 episode

Scott Adsit

1 episode

Todd Bridges

1 episode

Brittany Curran

1 episode

Redman

1 episode

Sting

1 episode

Melissa Joan Hart

1 episode

Dan Milano

1 episode

Randy Jackson

1 episode

Jay Mohr

1 episode

Venus Williams

1 episode

Jillian Barberie

1 episode

Nelly

1 episode

Kelly Hu

1 episode

Jason Earles

1 episode

Sumner Redstone

1 episode

Bucky Lasek

1 episode

Chris Martin

1 episode

Kelly Preston

1 episode

Zack Shada

1 episode

Spencer Daniels

1 episode

Paul Wight

1 episode

Adam Brody

1 episode

Amanda Beard

1 episode

Alanis Morissette

1 episode

Twista

1 episode

Terry Bradshaw

1 episode

Mo Collins

1 episode

William H. Macy

1 episode

Louie Anderson

1 episode

Ray Romano

1 episode

Matthew Broderick

1 episode

Elijah Wood

1 episode

Beverly Johnson

1 episode

Pablo Francisco

1 episode

Lee Reherman

1 episode

Patton Oswalt

1 episode

Matthew Fox

1 episode

Ken Norton, Jr.

1 episode

Usher

1 episode

David Herman

1 episode

Camryn Manheim

1 episode

Pierce Brosnan

1 episode

Oscar de la Hoya

1 episode

David James Elliott

1 episode

Jacob Young

1 episode

Jake Busey

1 episode

Ron Howard

1 episode

Dustin Hoffman

1 episode

Don Johnson

1 episode

Steven Cojocaru

1 episode

Martin Klebba

1 episode

Kelly Osbourne

1 episode

Jon Favreau

1 episode

Eric Idle

1 episode

Steve Harvey

1 episode

Keanu Reeves

1 episode

Will Sasso

1 episode

Sean Hayes

1 episode

Tequan Richmond

1 episode

Nathan Morris

1 episode

Kristin Davis

1 episode

Jack Betts

1 episode

Jane Krakowski

1 episode

Laurence Fishburne

1 episode

Jeffrey Tambor

1 episode

Warren Beatty

1 episode

Charlton Heston

1 episode

Bradley Whitford

1 episode

Kenny G

1 episode

Ben Affleck

1 episode

Dionne Warwick

1 episode

Kim Cattrall

1 episode

Will Smith

1 episode

Damon Dash

1 episode

Elisha Cuthbert

1 episode

Philip Bailey

1 episode

William Hung

1 episode

Dominic Monaghan

1 episode

Calista Flockhart

1 episode

Brad Rowe

1 episode

Jaclyn Smith

1 episode

Toni Braxton

1 episode

Fred Durst

1 episode

Michael Michele

1 episode

Mila Kunis

1 episode

Cuba Gooding Jr.

1 episode

Kevin Smith

1 episode

Taye Diggs

1 episode

Nick Cannon

1 episode

Kristin Chenoweth

1 episode

Terry Farrell

1 episode

Keely Shaye Smith

1 episode

Michelle Trachtenberg

1 episode

Justin Timberlake

1 episode

Eric Benét

1 episode

Morgan Flynn

1 episode

Wayne Brady

1 episode

Malinda Williams

1 episode

Chris Irvine

1 episode

Essence Atkins

1 episode

Lance Armstrong

1 episode

'Weird Al' Yankovic

1 episode

Fran Drescher

1 episode

Drew Barrymore

1 episode

Rob Thomas

1 episode

Carson Daly

1 episode

Courteney Cox

1 episode

Christine Lahti

1 episode

Christopher Masterson

1 episode

Shannon Elizabeth

1 episode

Portia de Rossi

1 episode

Christina Aguilera

1 episode

Ozzy Osbourne

1 episode

Wanda Sykes

1 episode

Alec Baldwin

1 episode

Tara Reid

1 episode

Hulk Hogan

1 episode

Lara Flynn Boyle

1 episode

Ted Danson

1 episode

Michelle Pfeiffer

1 episode

Leslie Hope

1 episode

Jack Osbourne

1 episode

Simon Cowell

1 episode

Spencer Breslin

1 episode

Gloria Estefan

1 episode

Glenn Close

1 episode

Jackie Chan

1 episode

Patricia Heaton

1 episode

Sheryl Crow

1 episode

Shawn Wayans

1 episode

Jimmy Fallon

1 episode

Jennifer Aniston

1 episode

Nick Lachey

1 episode

Evan Ellingson

1 episode

Dave Navarro

1 episode

Sharon Osbourne

1 episode

Mark Curry

Himself - Host

1 episode

Travis Van Winkle

Shirtless Hunk

1 episode

Aaron Coleman

Preacher

1 episode

Smalls

Notorious B.I.G. (as Rick Smalls Strickland)

1 episode