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
as Christopher McCandless / Alexander Supertramp

Marcia Gay Harden
as Billie McCandless

William Hurt
as Walt McCandless

Jena Malone
as Carine McCandless / Additional Narration (voice)

Brian H. Dierker
as Rainey

Catherine Keener
as Jan Burres

Vince Vaughn
as Wayne Westerberg

Kristen Stewart
as Tracy Tatro

Hal Holbrook
as Ronald "Ron" Franz

Thure Lindhardt
as Mads