Sean Penn	...	(Director)
Sean Penn, Jon Krakauer	...	(Writer)
Marcia Gay Harden	...	Billie McCandless
William Hurt	...	Walt McCandless
Vince Vaughn	...	Wayne Westerberg
Emile Hirsch	...	Chris McCandless
Catherine Keener	...	Jan Burres
Jena Malone	...	Carine McCandless
Brian H. Dierker	...	Rainey
Kristen Stewart	...	Tracy Tatro
Hal Holbrook	...	Ron Franz
Jim Gallien	...	Himself
James O'Neill	...	Graduation Reader (as James J. O'Neill)
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
Thure Lindhardt	...	Mads
Signe Egholm Olsen	...	Sonja
Floyd Wall	...	Man in Phone Booth
Bryce Walters	...	Chris 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	...	Himself
Matt Contreras	...	Book Shopper #1
Denise Sitton	...	Book Shopper #2
Bart the Bear	...	Bear
Sharon Olds	...	Additional Narrator (voice)
Carine McCandless	...	Additional Narrator (voice)
Caroline Gelabert	...	Graduating Billie McCandless
Michael Brook	...	Composer
Kaki King	...	Composer
Eddie Vedder	...	Composer
Eric Gautier	...	Cinematographer
Jay Cassidy	...	Editor

Summary: Into the Wild is based on a true story and the best-selling book by Jon Krakauer. After graduating from Emory University in 1992, top student and athlete Christopher McCandless (Hirsch) abandons his possessions, gives his entire $24,000 savings account to charity and hitchhikes to Alaska to live in the wilderness. Along the way, Christopher encounters a series of characters that shape his life.