Undeclared (2001–2003)

Jay Baruchel

Steven Karp 18 episodes, 2001-2003

Carla Gallo

Lizzie Exley 18 episodes, 2001-2003

Charlie Hunnam

Lloyd Haythe 18 episodes, 2001-2003

Monica Keena

Rachel Lindquist 18 episodes, 2001-2003

Seth Rogen

Ron Garner 18 episodes, 2001-2003

Timm Sharp

Marshall Nesbitt 18 episodes, 2001-2003

Christina Payano

Hal Karp 12 episodes, 2001-2002

Jarrett Grode

Perry 11 episodes, 2001-2003

Leroy Adams

Eric 3 episodes, 2001-2003

P.B. Smiley

Lucien 5 episodes, 2001-2003

Matt McKane

Taint / ... 5 episodes, 2001-2002

Amy Poehler

Hillary - Top Floor R.A. 3 episodes, 2001-2002

Kevin Hart

Luke 3 episodes, 2002-2003

Fred Willard

Professor Duggan 2 episodes, 2001-2002

Busy Philipps

Kelly 2 episodes, 2002

Ted Nugent

Self / ... 2 episodes, 2001-2002

Samm Levine

Books 2 episodes, 2001

Natasha Melnick

Jenni 2 episodes, 2001

David Krumholtz

Greg 2 episodes, 2001-2002

Gerry Bednob

Mr. Burundi 2 episodes, 2001-2002

Jenna Fischer

Betty / ... 2 episodes, 2001

Kyle Gass

Eugene 2 episodes, 2001-2002

Lacey Beeman

Brandi 2 episodes, 2001

Jake Hoffman

Lee 2 episodes, 2001

Jeremy Howard

Totem Pole 2 episodes, 2001

Joanne Cho

Celeste / ... 2 episodes, 2001-2002

Seth St. Laurent

Pledge 2 episodes, 2001

Elaine Curtis

Pretty Girl 1 episode, 2001

Sarah Jane Morris

Jana 1 episode, 2001

Will Ferrell

Dave 1 episode, 2001

Katharine Towne

Rebecca 1 episode, 2001

Geoffrey Arend

Jimmy 1 episode, 2002

Jonathan Loughran

Self - Adam Sandler's Assistant 1 episode, 2001

Sarah Carter

Evie 1 episode, 2002

Ben Stiller

Rex 1 episode, 2002

Amy Wright

Debra Karp 1 episode, 2002

Adam Alexi-Malle

Professor Burg 1 episode, 2002

Simon Helberg

Jack 1 episode, 2001

Martin Starr

Theo 1 episode, 2002

Blake Shields

Henry 1 episode, 2002

Kelly Karbacz

Jane 1 episode, 2002

David Pasquesi

Professor Beyser 1 episode, 2003

Steve Bannos

Dingleberry 1 episode, 2001

Elisa Bocanegra

Nicola 1 episode, 2001

Yûki Kudô

Kikuki 1 episode, 2002

Kimberly Stewart

Amanda Haythe 1 episode, 2002

Clement Blake

Antonio 1 episode, 2002

Greg Mottola

Young Professor 1 episode, 2001

Jordan Black

Card Guy 1 episode, 2001

Mandy Freund

Susan 1 episode, 2002

Cathy Lind Hayes

Mrs. Nesbitt 1 episode, 2002

Joel Madison

Customer 1 episode, 2002

Jennifer Shon

Mr. Nesbitt 1 episode, 2002

Sarah Ann Morris

Janice 1 episode, 2002

R.F. Daley

Customer 1 episode, 2002

Bhavna de Montebello

Tom 1 episode, 2001

Mary Kay Place

Mrs. Lindquist 1 episode, 2002

Erica Hubbard

Gloria 1 episode, 2002

Kim Fifield

Alice 1 episode, 2002

Stephanie Lemelin

Tara 1 episode, 2002

Casey Durante

Shelia 1 episode, 2003

Lizzy Caplan

Beautiful Girl 1 episode, 2001

Ken Daly

Japanese Translation Computer 1 episode, 2002

Marc Davies

Pledge (uncredited) 2 episodes, 2001

Adam Sandler

Adam Sandler (uncredited) 1 episode, 2001

Mike White

Pet Store Employee (uncredited) 1 episode, 2001

Allen Covert

Allen Covert (uncredited) 1 episode, 2001

Sarah Hagan

Jordanna (uncredited) 1 episode, 2001

Kellee Stewart

Student (uncredited) 1 episode, 2001

Andrea C. Pearson

Dormie with Chip (uncredited) 1 episode, 2001

Tara Hunnewell

Sorority Girl (uncredited) 1 episode, 2001

Serein Wu

Photographer (uncredited) 1 episode, 2002

Monica Allgeier

Friend (uncredited) 1 episode, 2002