Sean Penn Director Emile Hirsch Christopher McCandless Actor Marcia Gay Harden Billie McCandless Actor William Hurt Walt McCandless Actor Jena Malone Carine McCandless Actor Catherine Keener Jan Burres Actor Brian Dierker Rainey Actor Vince Vaughn Wayne Westerberg Actor Zach Galifianakis Kevin Actor Kristen Stewart Tracy Actor Kyle Kwon Ted Turner Actor Hal Holbrook Ron Franz Actor Thure Lindhardt Thomas Actor Art Linson Producer Bill Pohlad Producer David Blocker Executive Producer John J. Kelly Executive Producer Frank Hildebrand Executive Producer Eric Gautier Cinematographer Jay Cassidy Film Editing Domenic Silvestri Art Director John Richardson Art Director Danielle Berman Set Decoration Christopher Neely Set Decoration Mary Claire Hannan Costume Design Francine Maisler Casting Michael Brook Original Music Kaki King Original Music Eddie Vedder Original Music Derek R. Hill Production Design