Adam Scott Samuel
Steve Carell Self (uncredited)
Paul Rudd Pete
Jessica Alba Self (uncredited)
Jonah Hill Jonah
Kristen Wiig Jill
Leslie Mann Debbie
James Franco Self (uncredited)
Alan Tudyk Jack
Eva Mendes Self (uncredited)
Ken Jeong Dr. Kuni
Seth Rogen Ben Stone, Executive Producer
Paul Feig Fantasy Baseball Guy
Jay Baruchel Jay
Bill Hader Brent
Craig Robinson Club Doorman
Evan Goldberg Executive Producer
Brianna Brown Alison's Friend
Jason Segel Jason
Lo Mutuc Jodi
Dax Shepard Self (uncredited)
Harold Ramis Ben's Dad
Judd Apatow Director, Screenplay, Producer
Joanna Kerns Alison's Mom
David Parker Sound Re-Recording Mixer
Maude Apatow Sadie
Martin Starr Martin
Catherine Reitman Alison's Friend
B.J. Novak Young Doctor
Katherine Heigl Alison Scott
Mo Collins Female Doctor
Tim Bagley Dr. Pellagrino
Steven Brill Ben's Boss
Ryan Seacrest Self (uncredited)
Iris Apatow Charlotte
Nautica Thorn Lap Dancer
Loudon Wainwright III Original Music Composer, Dr. Howard
J.P. Manoux Dr. Angelo
Andy Dick Self (uncredited)
Jesse Heiman Stand In
Nick Thune Alison's Friend
Allison Jones Casting
Wayne Federman Fantasy Baseball Guy
Shauna Robertson Producer
Scott Millan Sound Re-Recording Mixer
Courtenay Miles Second Assistant Director
Debra McGuire Costume Design
Katrina Mastrolia Costume Supervisor
Ron Mellegers Foley Recordist
Dorian Frankel Casting Assistant
Andy Malcolm Foley Artist
Don White Foley Recordist
Tami Sagher Wardrobe Lady
Rebecca Asher Script Supervisor
Gary Burritt Negative Cutter
Matt Leonard Stunts
Chase Fein Production Assistant
Wendy Hoffmann ADR Voice Casting
Ann Pala Key Makeup Artist, Makeup Artist
Matthew W. Mungle Prosthetic Designer, Prosthetic Makeup Artist
Goro Koyama Foley Artist
Clayton Townsend Producer, Unit Production Manager
Chris L. Spellman Set Decoration
Eric Alan Edwards Director of Photography
Clinton Wayne Prosthetic Makeup Artist
Greg Steele ADR Mixer
Kathy Nelson Executive Music Producer
Matthew Bass Production Assistant
Joseph T. Mastrolia Costume Supervisor, Father in Waiting Room
Greg Zimmerman ADR Recordist
Cindy Marty Sound Effects Editor
Mark Weissenfluh Leadman