Andrew Garfield Eduardo Saverin
Dakota Johnson Amelia Ritter
David Fincher Director
Jesse Eisenberg Mark Zuckerberg
Rooney Mara Erica Albright
Rashida Jones Marylin Delpy
Kevin Spacey Executive Producer
Armie Hammer Cameron Winklevoss / Tyler Winklevoss
Caleb Landry Jones Fraternity Guy
Scott Lawrence Maurice
Brenda Song Christy Ling
Max Minghella Divya Narendra
Joseph Mazzello Dustin Moskovitz
Jason Flemyng Regatta Spectator (uncredited)
Justin Timberlake Sean Parker
David Selby Gage
Wallace Langham Peter Thiel
Aaron Sorkin Ad Executive, Screenplay
John Getz Sy
Caitlin Gerard Ashleigh
Adina Porter Gretchen's Associate (uncredited)
Ki Hong Lee Student (uncredited)
Melise Alice Cantwel
Trent Reznor Original Music Composer
Cherilyn Wilson Sorority Girl
Michael De Luca Producer
Mickey Giacomazzi Stunt Coordinator
Riley Voelkel Final Club Girl (uncredited)
Felisha Terrell Beautiful Woman
Jacqueline West Costume Design
Pamela Roylance Ad Board Chairwoman
Ceán Chaffin Producer
Shelby Young KC
Barry Livingston Mr. Cox
Scott Rudin Producer
Emma Fitzpatrick Sharon
Donald Graham Burt Production Design
Michael Stevenson Additional Second Assistant Director
Rebecca Tilney Art History Professor (uncredited)
Atticus Ross Original Music Composer
Darin Cooper Facebook Lawyer
David Parker Sound Re-Recording Mixer
Oliver Muirhead Mr. Kenwright
Mark Weingarten Production Sound Mixer
Michael Semanick Sound Re-Recording Mixer
Josh Pence Tyler Winklevoss (Body Double)
Ren Klyce Sound Re-Recording Mixer
David E. Scott Production Design
Cedric Sanders Reggie
Mike Bash Bob (uncredited)
Patty Connolly ADR & Dubbing
Mark Sussman ADR & Dubbing
Jesse Heiman Student (uncredited)
Nancy Linari Larry Summers' Secretary
Marcella Lentz-Pope Erica's Roommate
Alyson Dee Moore Foley Artist
Dana Brunetti Producer
Sharron Reynolds-Enriquez Script Supervisor
Peter Holden Facebook Lawyer
Amy Ferguson Stoned Girl
James Shanklin Prince Albert
Andrew Thacher Policeman
John Roesch Foley Artist
Patrick Mapel Chris Hughes
Brian Palermo CS Lab Professor
Eli Jane Dancer (uncredited)
Douglas Urbanski Larry Summers
Jared Hillman Mackey
Lacey Beeman Sorority Girl
Angus Wall Editor
Richard Schuler Location Manager
Toby Meuli Phoenix Member Playing Facemash