Martin Landau
Robert

Ellen Burstyn
Mary

Adam Scott
Mike

Elizabeth Banks
Alex

Har Mar Superstar
Peter (as Sean Tillmann)

Kali Cook
Cute Girl

Chris Wiig
Co-Worker #1 (as Christopher Why)

M. Michele Phillips
Co-Worker #2

Tina Dixon
Post Woman (as Christine Dixon)

Mary Husar
Co-Worker #3

Scott Beehner
Co-Worker #4

Todd Fink
Fancy Waiter

Ross Brockley
Grumpy Carriage Driver

Alex Curbeam
Damien Montgonmery

Michael Leach Jr.
Sled Kid #2

Nick Hernandez
Sled Kid #3

Leo Fitzpatrick
Pharmacist

Judith Kathryn Hart
Jacky

Jules Blight
Lisa

Mark Booker
Harold

Mark Kresl
Rufus

Zoey Newman
Michelle

James Devney
Buck

Melissa Jarecke
Party Woman

Sean O'Connell
Young Mike

Randi-Shane Knox
Young Alex