as Peter Gibbons

as Ron

as Rob

as Allen Ginsberg

as Marty Bowen

as Gomez

as Percy Anderson

as Johnny

as Bob Kaplan

as Donnie Anderson

as Derek

as Dr. Richard Clayton

as Patrick

as Will Broderick

as Sheldon Buckle

as Rick (segment "The Honeymoon") / RV Driver (segment "The Campfire")

as Caldwell

as Future JR Maguire (voice only)

as Uncle Charlie

as Franklin Crudstaff

as Marty Sachs

as James

as Paul

as Chad

as Dr. Bannister

as Adrian

as Dr. Liberman

as Rance McCoy

as Roger Perron

as Chris

as Charles

as James Hosty

as Self - 'Henry Allen'

as Captain Wonder

as Self

as Trent

as Richard

as Larry Sokolov

as Narrator

as Bob

as Edwin

as Fred

as Ben

as Elvis Presley

as David Lipsky's Editor

as Ethan

as Rudolf

as Oliver Sullivan

as Medic (uncredited)

as Mark Wallace

as Richard Pimentel

as Ron Livingston

as Eric Gatley (uncredited)

as Bobby Lawrence

as Drew Moreau

as Tyler Bellows

as Mr. Bricker

as Francois

as Kyle Walker

as Flag Pin

as Henry Wright

as Pete

as Clerk (voice)

as Soldier

as Self

as Narrator

as Henry Allen

as Jim Lamson

as Self

as Ron Statlin

as himself

as Co-Producer

as Thanks