John Moore Director, Producer Liev Schreiber Robert Thorn Actor Julia Stiles Katherine Thorn Actor Mia Farrow Mrs. Baylock Actor David Thewlis Jennings Actor Pete Postlethwaite Father Brennan Actor Seamus Davey-Fitzpatrick Damien Actor Michael Gambon Bugenhagen Actor Nikki Amuka-Bird Dr. Becker Actor Marshall Cupp Steven Haines Actor Reggie Austin Tom Portman Actor David Seltzer Writer Dan McDermott Writer Glenn Williamson Producer Peter Kang Executive Producer Hutch Parker Executive Producer Jeffrey Stott Executive Producer Jonathan Sela Cinematographer Susie Figgis Casting Patrick Lumb Production Design Katarina Kopicová Art Director Martin Kurel Art Director George L. Little Costume Design Marco Beltrami Original Music Dan Zimmerman Film Editing Patrick "Paki" Smith Set Decoration