Phil Morrison Director Paul Rudd Rene Actor Paul Giamatti Dennis Actor, Executive Producer Sally Hawkins Olga Actor Peter Hermann Tremblay Actor Halley Feiffer Claire Actor Michael Drayer Bobby Actor Amy Landecker Therese Actor Tatyana Richaud Michi Actor Melissa James Gibson Screenwriter Daniel Carey Producer Elizabeth Giamatti Producer Sidney Kimmel Producer John Penotti Producer Michael Hogan Executive Producer Bruce Toll Executive Producer Mott Hupfel Cinematographer Jeff Buchanan Film Editing Graham Reynolds Original Music Mary Frederickson Production Design Morgan Sabia Art Director Kelley Burney Set Decoration Ciera Wells Costume Design Mark Bennett Casting Gayle Keller Casting