Jon Favreau Doctor Director, Actor Will Ferrell Buddy Actor James Caan Walter Actor Bob Newhart Papa Elf Actor Ed Asner Santa Actor Mary Steenburgen Emily Actor Zooey Deschanel Jovie Actor Daniel Tay Michael Actor Faizon Love Gimbel's manager Actor Peter Dinklage Miles Finch Actor Amy Sedaris Deb Actor Michael Lerner Fulton Actor Andy Richter Morris Actor Kyle Gass Eugene Actor David Berenbaum Writer Jon Berg Producer Todd Komarnicki Producer Shauna Robertson Producer Kent Alterman Executive Producer Cale Boyter Executive Producer Toby Emmerich Executive Producer Jimmy Miller Executive Producer Julie Wixson Darmody Executive Producer Greg Gardiner Cinematographer Dan Lebental Film Editing John Debney Original Music Rusty Smith Production Design Kelvin Humenny Art Director Johanne Hubert Set Decoration Laura Jean Shannon Costume Design Susie Farris Casting