Emile Hirsch

as Andy

as Joseph Bau

as Grun

as Walden Dean

as Etan

as Bobby Belucci

as Stephen

as Adam

as Donald

as Victor

as Michael

as Rick Calloway

as Michael Rubino

as Byron Crawford

as Jim (voice)

as Paul

as James Moore

as Cardillo

as Dad

as Jay Sebring

as Patrick Tate

as Peel

as Shane Danger

as Paulie Bowers

as Jack Turner

as Self

as Martin

as Austin Tilden

as Vincent Stewart

as Dean

as Johnny

as Petty Officer Second Class Danny Dietz

as Frank

as Lance

as Diego

as Spin

as Chris Smith

as Sean

as Billy

as Cleve Jones

as Speed

as Christopher McCandless / Alexander Supertramp

as Tony

as Johnny Truelove

as Jay

as Tim Travis

as Matthew Kidman

as Duncan Mudge

as Sedgewick Bell

as Francis Doyle

as Young Houdini