Tony Goldwyn Director Zach Braff Michael Actor Casey Affleck Chris Actor Michael Weston Izzy Actor Eric Christian Olsen Kenny Actor Jacinda Barrett Jenna Actor Rachel Bilson Kim Actor Blythe Danner Anna Actor Tom Wilkinson Stephen Actor Lauren Lee Smith Lisa Actor Marley Shelton Arianna Actor Ellen David Izzy's Mother Actor Harold Ramis Professor Bowler Actor David Haydn-Jones Mark Actor Terry McKay Executive Producer Paul Haggis Writer Tom Rosenberg Producer Gary Lucchesi Producer Andre Lamal Producer, Executive Producer Marcus Viscidi Producer Mark Sourian Executive Producer Gabriele Muccino Executive Producer Eric Reid Executive Producer Harley Tannenbaum Executive Producer Tom Stern Cinematographer Lisa Zeno Churgin Film Editing Schuyler Fisk Original Music Dan Leigh Production Design Gilles Aird Art Director Frédérique Bolté Set Decoration Claude Leclair Set Decoration Odette Gadoury Costume Design Deborah Aquila Casting Vera Miller Casting Mary Tricia Wood Casting