Kristen Stewart Tracy Tatro
Zach Galifianakis Kevin
Sean Penn Director, Producer, Screenplay
Jack Nicholson Thanks
Vince Vaughn Wayne Westerberg
Emile Hirsch Christopher McCandless / Alexander Supertramp
Jena Malone Carine McCandless / Additional Narration (voice)
Catherine Keener Jan Burres
Hal Holbrook Ronald "Ron" Franz
Marcia Gay Harden Billie McCandless
Merritt Wever Lori
William Hurt Walt McCandless
Thure Lindhardt Mads
Haley Ramm Carine McCandless (age 11)
Eddie Vedder Music, Songs
R. D. Call Bull
Nerses Gezalyan Sound Mixer
Signe Egholm Olsen Sonja
Cheryl Francis Harrington Social Worker
Lora Hirschberg Sound Re-Recording Mixer
Jacques Jouffret Steadicam Operator
Art Linson Producer
Michael Minkler Sound Re-Recording Mixer
Frank Hildebrand Executive Producer
Mike Smithson Makeup Artist
Francine Maisler Casting
Kathy Driscoll-Mohler Casting Associate
Cole S. McKay Stunts
Éric Gautier Director of Photography
Mary Claire Hannan Costume Design
Jon Krakauer Book, Thanks
Brian H. Dierker Rainey
Derek R. Hill Production Design
Gary J. Wayton Stunts
Steve Hart Stunts
Gary Archer Prosthetics
Haley Sweet Bank Teller (uncredited), Production Supervisor
Chris Regan Color Timer
Jay Cassidy Editor
Domenic Silvestri Art Direction
Lauren Grey Casting Associate
Bill Pohlad Producer
Edward Tise Sound Mixer
Mychael Bates Property Master
John Jabaley Announcer
Aaron Wayne Hill Big Wheel Boy (uncredited)
Luca Kouimelis Script Supervisor
John J. Kelly Executive Producer
Robin Mathews Gail Borah, Makeup Department Head
Danielle Berman Set Decoration
Michael Brook Original Music Composer
J. Nathan Simmons Tourist (uncredited)
David Blocker Executive Producer
Brinton Bryan Second Unit
Bart the Bear II Bear
Doug Seus Stunt Coordinator
Christopher Barnett Sound Effects Editor
Steven Wiig Lee's Ferry Ranger
Jacqueline Aronson Costume Supervisor
Donald Frazee Special Effects Supervisor
Bryce Walters Christopher McCandless (age 4)
Sterfon Demings Hair Department Head
Lyn Matsuda Norton Script Supervisor
Chuck Zlotnick Still Photographer
Martín Hernández Sound Designer, Supervising Sound Editor
David Webb Assistant Director
Christopher Neely Set Decoration
Parris Mosteller Young Boy (voice) (uncredited)
David Franco Music Supervisor
John R. Saunders Assistant Director
Sharon Olds Additional Narration (voice)
Billie McCandless Thanks