Dakota Johnson Amelia Ritter
Andrew Garfield Eduardo Saverin
Jesse Eisenberg Mark Zuckerberg
Kevin Spacey Executive Producer
David Fincher Director
Max Minghella Divya Narendra
Jason Flemyng Regatta Spectator (uncredited)
Rashida Jones Marylin Delpy
Rooney Mara Erica Albright
Armie Hammer Cameron Winklevoss / Tyler Winklevoss
Caleb Landry Jones Fraternity Guy
Aaron Sorkin Ad Executive, Screenplay
Shelby Young KC
Brenda Song Christy Ling
Ki Hong Lee Student (uncredited)
Adina Porter Gretchen's Associate (uncredited)
Justin Timberlake Sean Parker
Joseph Mazzello Dustin Moskovitz
Wallace Langham Peter Thiel
Caitlin Gerard Ashleigh
Melise Alice Cantwel
John Getz Sy
Scott Lawrence Maurice
David Selby Gage
Riley Voelkel Final Club Girl (uncredited)
Oliver Muirhead Mr. Kenwright
Josh Pence Tyler Winklevoss (Body Double)
Trent Reznor Original Music Composer
Felisha Terrell Beautiful Woman
Emma Fitzpatrick Sharon
Nancy Linari Larry Summers' Secretary
Atticus Ross Original Music Composer
Darin Cooper Facebook Lawyer
Barry Livingston Mr. Cox
Michael De Luca Producer
Amy Ferguson Stoned Girl
Pamela Roylance Ad Board Chairwoman
Peter Holden Facebook Lawyer
Scott Rudin Producer
John Roesch Foley Artist
Michael Semanick Sound Re-Recording Mixer
Mickey Giacomazzi Stunt Coordinator
Mariah Bonner Tori
Trevor Wright B.U. Guy in Bra
Ceán Chaffin Producer
Monique Edwards Bank Teller
Cedric Sanders Reggie
Patrick Mapel Chris Hughes
Donald Graham Burt Production Design
Dana Brunetti Producer
Marcella Lentz-Pope Erica's Roommate
Jesse Heiman Student (uncredited)
Eli Jane Dancer (uncredited)
Cherilyn Wilson Sorority Girl
Michael Stevenson Additional Second Assistant Director
Laray Mayfield Casting
Dan Brown Stunts
Denise Grayson Gretchen
Edson Williams Visual Effects Supervisor
Mike Bash Bob (uncredited)
Cali Fredrichs KC's Friend
Jacqueline West Costume Design
Kandis Mak Go-Go Dancer (uncredited)
Maciek Sokalski Digital Compositors
Tyler Nelson Assistant Editor
Douglas Urbanski Larry Summers
Tia Robinson Club Waitress (uncredited)
John Hayden Howard Winklevoss
Rebecca Tilney Art History Professor (uncredited)
David Parker Sound Re-Recording Mixer
Brian Palermo CS Lab Professor
Malcolm Fife Dialogue Editor