Jesse Eisenberg
as Mark Zuckerberg
Andrew Garfield
as Eduardo Severin
Justin Timberlake
as Sean Parker
Armie Hammer
as Cameron & Tyler Winklevoss
Roony Mara
as Erica Albright
Max Minghella
as Divya Narendra
Bryan Barter
as Billy Olsen
Joseph Mazzello
as Dustin Moskovitz
Patrick Mapel
as Chris Hughes
