Kristen Wiig

Jill

Ken Jeong

Dr. Kuni

Alan Tudyk

Jack

Seth Rogen

Ben Stone

Leslie Mann

Debbie

Bill Hader

Brent

Loudon Wainwright III

Dr. Howard

Paul Rudd

Pete

Harold Ramis

Ben's Dad

Lo Mutuc

Jodi

J.P. Manoux

Dr. Angelo

Jonah Hill

Jonah

Jason Segel

Jason

Jay Baruchel

Jay

Craig Robinson

Club Doorman

Martin Starr

Martin

Katherine Heigl

Alison Scott

Mo Collins

Female Doctor

Adam Scott

Samuel

Judd Apatow

Director

Joanna Kerns

Alison's Mom

Evan Goldberg

Executive Producer

Maude Apatow

Sadie

Iris Apatow

Charlotte

Tim Bagley

Dr. Pellagrino

Stephanie Mnookin

Dr. Howard's Nurse