Craig Gillespie Director Ryan Gosling Lars Actor Paul Schneider Gus Actor Emily Mortimer Karin Actor Patricia Clarkson Dagmar Actor Kelli Garner Margo Actor Nancy Beatty Mrs. Gruner Actor Karen Robinson Cindy Actor R.D. Reid The Rev. Bock Actor Nancy Oliver Writer Sarah Aubrey Producer John Cameron Producer Sidney Kimmel Producer Whitney Brown Executive Producer William Horberg Executive Producer Bruce Toll Executive Producer Peter Berg Executive Producer Adam Kimmel Cinematographer Tatiana S. Riegel Film Editing David Torn Original Music Arvinder Grewal Production Design Joshu de Cartier Art Director Steve Shewchuk Set Decoration Kirston Mann Costume Design Gerri Gillan Costume Design David Rubin Casting Richard Hicks Casting