John C. Reilly
John Kilpatrick
Jonah Hill
Cyrus Fawcett
Marisa Tomei
Molly Fawcett
Catherine Keener
Jamie
Matt Walsh
Tim
Kathy Ann Wittes
Ashley
Diane Mizota
Thermostat Girl
Katie Aselton
Pretty Girl
Jamie Donnelly
Pastor
Tim Guinee
Roger
Steve Zissis
Rusty
Bill 'Bunky' Miller
Cyrus
Charlie Brewer
Stranger at Reception
Mitch Carter
Additional Voice (voice)
Newell Alexander
Additional Voice (voice)
Steve Alterman
Additional Voice (voice)