Steve Carell
Dodge Petersen
Keira Knightley
Penelope "Penny" Lockhart
Martin Sheen
Frank Petersen
Melanie Lynskey
Karen Amalfi
Nancy Carell
Linda Petersen
Gillian Jacobs
Waitress / Katie
T.J. Miller
Chipper Host / Darcy
Bob Stephenson
Officer Wally Johnson
Brad Morris
Radio Announcer (voice)
Trisha Gorman
Crying Woman
Amy Schumer
Woman #1 / Lacey
Marshall Manesh
Indian Man
Matthew Alan Brady
Kissing Couple In Park (uncredited)
Tony Brown
Gay Party Guest (uncredited)
Lauren Crawford
Bikini Girl (uncredited)
Laura Mann
Sarah (uncredited)
Prestin Persson
Bikini Girl (uncredited)
Lauren K. Solomon
Kissing Friendsy's Customer (uncredited)
Chris Spinelli
Cyclist (uncredited)
Hannah Victoria Stock
Party Girl (uncredited)