Dakota Johnson Amelia Ritter
Andrew Garfield Eduardo Saverin
Kevin Spacey Executive Producer
Jesse Eisenberg Mark Zuckerberg
Rooney Mara Erica Albright
Jesse Heiman Student (uncredited)
Emma Fitzpatrick Sharon
Rashida Jones Marylin Delpy
Josh Pence Tyler Winklevoss (Body Double)
Peter Holden Facebook Lawyer
Max Minghella Divya Narendra
Armie Hammer Cameron Winklevoss / Tyler Winklevoss
Lacey Beeman Sorority Girl
Marybeth Massett Mrs. Cox
Joseph Mazzello Dustin Moskovitz
Jason Flemyng Regatta Spectator (uncredited)
Jared Hillman Mackey
David Fincher Director
Adina Porter Gretchen's Associate (uncredited)
Inger Tudor Anne
Trish Gallaher Glenn Property Master
Randy Evans Student in Communications Office
Aaron Sorkin Ad Executive, Screenplay
Tony DeSean Waiter (uncredited)
Aaron Haye Set Designer
Ben Gladstone Location Manager
Kyle Fain Intern Eric
Cali Fredrichs KC's Friend
Brenda Song Christy Ling
Caleb Landry Jones Fraternity Guy
Carey Len Smith Post Production Supervisor
Thomas Nittmann Visual Effects Producer
Noah Baron Student (uncredited)
Justin Timberlake Sean Parker
Wallace Langham Peter Thiel
Chris Weigand Lighting Technician
Scott Rudin Producer
Rebecca Tilney Art History Professor (uncredited)
Barry Livingston Mr. Cox
Theodore Sharps Set Designer
Jane Wuu Set Designer
Ken Edling Stand In
Ki Hong Lee Student (uncredited)
Melise Alice Cantwel
Eric La Barr Harvard Note-Passer (uncredited)
Oliver Muirhead Mr. Kenwright
Scott Lawrence Maurice
Elliott Ehlers Harvard Student (uncredited)
Felisha Terrell Beautiful Woman
Shelby Young KC
Brian Palermo CS Lab Professor
John Getz Sy
Monique Edwards Bank Teller
Abhi Sinha Vikram
Caitlin Gerard Ashleigh
David E. Scott Production Design
Andrew Thacher Policeman
Cherilyn Wilson Sorority Girl
Michael De Luca Producer
Mickey Giacomazzi Stunt Coordinator
Riley Voelkel Final Club Girl (uncredited)
Patrick Mapel Chris Hughes
Franco Vega Policeman
Trent Reznor Original Music Composer
Denise Grayson Gretchen
Eli Jane Dancer (uncredited)
Michael Stevenson Additional Second Assistant Director
Patty Connolly ADR & Dubbing
David Selby Gage
Trevor Wright B.U. Guy in Bra
Nancy Linari Larry Summers' Secretary
Iain Reid Thanks