Graham Greene (Ishi)
Jon Voight (Professor Albert Kroeber)
Anne Archer (Henriette Kroeber)
David Ogden Stiers (Dr. Saxton Pope)
James O'Connell (Wester Union Operator)
Sam David McClelland (Reporter #3)
Wanda McCaddon (Woman in Hat)
Charles Martinet (Assistant Museum Director)
Angela Paton (Mrs. Gustafson)
Carl Parker (Sheriff Weber)
Johnny Olson (Museum Goer)
George Maguire (Mr. Whatley)
John Ickes (Museum Director)
Roy Conrad (Reporter #2)
Jack Blessing (Tom Waterman)
Daniel Benzali (Mr. Whitney)