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