After graduating from Emory University in 1992, top student and athlete Christopher McCandless abandons his possessions, gives his entire $24,000 savings account to charity, and hitchhikes to Alaska to live in the wilderness.
Emile Hirsch Christopher McCandless / Alexander Supertramp
Marcia Gay Harden Billie McCandless
William Hurt Walt McCandless
Jena Malone Carine McCandless / Additional Narration (voice)
Brian H. Dierker Rainey
Catherine Keener Jan Burres
Vince Vaughn Wayne Westerberg
Kristen Stewart Tracy Tatro
Hal Holbrook Ronald "Ron" Franz
Thure Lindhardt Mads
Signe Egholm Olsen Sonja
Jim Gallien Jim Gallien
James J. O'Neill Graduation Reader
Malinda McCollum Waitress
Paul Knauls Building Manager
Zach Galifianakis Kevin
Craig Mutsch Wayne's Crew #1
Jim Beidler Wayne's Crew #2
John Decker Hutterite #1
John Hofer Hutterite #2
Jerry Hofer Hutterite #3
Terry Waldner Hutterite #4
Robin Mathews Gail Borah
Candice Campos Bar Girl
Steven Wiig Lee's Ferry Ranger
Floyd Wall Man In Phone Booth
Bryce Walters Christopher McCandless (age 4)
Jim Davis Immigration Officer
Cheryl Francis Harrington Social Worker
R. D. Call Bull
Haley Ramm Carine McCandless (age 11)
Merritt Wever Lori
Everett 'Insane Wayne' Smith Insane Cain
John Jabaley Announcer
Leonard Knight Leonard Knight
Matt Contreras Book Shopper #1
Denise Sitton Book Shopper #2
Sharon Olds Additional Narration (voice)
Carine McCandless Additional Narration (voice)
J. Nathan Simmons Tourist (uncredited)
Parris Mosteller Young Boy (voice) (uncredited)
Timothy Levine Atlanta Braves fan (uncredited)
Haley Sweet Bank Teller (uncredited)
Aaron Wayne Hill Big Wheel Boy (uncredited)
Bart the Bear II Bear