Proof

Anthony Hopkins as Robert Llewellyn Danny McCarthy as Cop Tobiasz Daszkiewicz as Limo Driver Colin Stinton as Theoretical Physicist Chipo Chung as University Friend Anne Wittman as Friend at Party Gwyneth Paltrow as Catherine Llewellyn Hope Davis as Claire Llewellyn C. Gerod Harris as University Friend Roshan Seth as Professor Bhandari Leigh Zimmerman as Friend at Party John Keefe as University Friend Jake Gyllenhaal as Harold 'Hal' Dobbs Gary Houston as Professor Barrow

Alison Owen Producer Harvey Weinstein Executive Producer John Madden Director Robert Kessel Producer Alwin H. Küchler Director of Photography Rebecca Miller Screenplay Bob Weinstein Executive Producer Suzanne Smith Crowley Casting Julie Goldstein Executive Producer Stephen Warbeck Original Music Composer Becky Bentham Music Supervisor Daniel Laurie Dialogue Editor, ADR Editor