Orson Welles
— Professor Richard Pierson / Self (voice) (archive sound)
Joel Nagle
— Dale
Virginia Logan
— Margaret
Henry Gagliardi
— Gene
Frank Readick
— Reporter Carl Phillips (voice) (archive sound)
Kenny Delmar
— Secretary of the Interior (voice) (archive sound)
Edwina Maye Phillips
— Timeless waitress
Indigo John Phillips
— Kid with milkshake