Mighty Joe Young

Terry Moore

Jill Young

Ben Johnson

Gregg Johnson

Robert Armstrong

Max O'Hara

Frank McHugh

Windy

Douglas Fowley

Jones

Denis Greene

Crawford

Paul Guilfoyle

Smith

Nestor Paiva

Brown

Regis Toomey

John Young

Lora Lee Michel

Jill (as a child)

James Flavin

Schultz

Mary Field

Secretary (uncredited)

Ellen Corby

Orphanage matron (uncredited)

Bess Flowers

Nightclub patron (uncredited)

Iris Adrian

Gloria (uncredited)

Jack Pennick

Sam (uncredited)

Joyce Compton

Alice (uncredited)

Byron Foulger

Jones (uncredited)

Addison Richards

Attorney (uncredited)

Henry Kulky

Strong Man (uncredited)

Dwayne Hickman

Boy (uncredited)

Richard Farnsworth

Cowboy (uncredited)

Charles Lane

Producer (uncredited)

Kermit Maynard

Red (uncredited)

Irene Ryan

Southern Belle at the Bar (uncredited)

William Schallert

Gas Station Attendant (uncredited)

Fay Wray

Woman's Scream (uncredited)

Ivan Rasputin

Strongman (uncredited)

Harry Strang

Policeman with Tramp (uncredited)

William 'Wee Willie' Davis

Strongman (uncredited)

Robert Tafur

Headwaiter (uncredited)

Archie Twitchell

Reporter

Jacqueline Dalya

Nightclub Dancer (uncredited)

Sammy Menacker

Strong Man

Herschel Graham

Nightclub Patron (uncredited)

Madame Sul-Te-Wan

Young Family Servant (Uncredited)