Joseph Gordon-Levitt Tom
Chloë Grace Moretz Rachel
Minka Kelly Autumn
Zooey Deschanel Summer
Clark Gregg Vance
Michael H. Weber Writer
Patricia Belcher Millie
Yvette Nicole Brown New Secretary
Rachel Boston Alison
Matthew Gray Gubler Paul
Marc Webb Director
Ian Reed Kesler Douche
Mark Waters Producer
Valente Rodriguez Employee #1
Geoffrey Arend McKenzie
Maile Flanagan Rhoda
Al Goto Stunt Coordinator
Gregory A. Thompson Minister
Richard McGonagle Narrator (voice)
Gustavo Carr Dancer
Samantha Krutzfeldt Charlie (uncredited)
Alexandra Nicole Hulme Dancer
Jennifer Hetrick Sarah (uncredited)
John Koyama Stunt Coordinator
Scott Neustadter Writer
Nadine Ellis Dancer
Sybil Azur Dancer
Hope Hanafin Costume Design
Rob Simonsen Original Music Composer
Darryl Sivad Usher
Tim Atkins ADR Recordist
Vivian Nixon Dancer
Chris Connell Marcus (uncredited)
Eyde Belasco Casting
Nicole Vicius Partygoer
Katie Malia Dancer
Christian Vincent Dancer
Piero Mura Sound Designer, Supervising Sound Editor
Renetta G. Amador Script Supervisor
Jean-Paul Vignon French Narrator (voice)
Brandon Henschel Dancer
Eric Steelberg Director of Photography
Jennifer Vecchiarello Assistant Editor
Nathan Prevost Dancer
Mychael Danna Original Music Composer
Eileen Álvarez Summer Lookalike (uncredited)
Laura Fox Production Design
Matthew Iadarola Sound Re-Recording Mixer
Jennifer Lukehart Set Decoration
Tim Lacatena Dancer
Chuck Zlotnick Still Photographer
Jennifer Hamilton Dancer
Bryan Anthony Dancer
Gary Gegan Sound Re-Recording Mixer
Alan Edward Bell Editor
Matthew Moriarty Steadicam Operator, Camera Operator
Jull Weber Dancer
Tracy Phillips Dancer
Darryl Alan Reed Bus Driver
Jennifer Lee Keyes Dancer
Reshma Gajjar Dancer
Steven J. Wolfe Producer
Gelsey Weiss Dancer
Cheryl Baxter Dancer
Jessica Tuchinsky Producer
Rebecca Lin Dancer
Grady Allen Bishop Camera Car, Driver
Kenneth Hughes Dancer
Jenny Hinkey Unit Production Manager
John R. Corella Dancer
Charles Varga Art Direction
Ryan Thomas Dancer