Walter Connolly

John Forrester aka Eric Jann aka Peter Korotoff

Doris Kenyon

Margaret Forrester

Robert Young

Jack Forrester

Scotty Beckett

Jack Forrester, Age 4

Henry Kolker

Carlo - the Puppeteer

Akim Tamiroff

Peter Korotoff

Gilbert Emery

Professor Weaver

George Humbert

Niccoli

Hobart Bosworth

Alec Klein

Macon Jones

Jack Forrester - Age 14

Rollo Lloyd

Henry Braverman

Maidel Turner

Henrietta Crosland

Hugh Huntley

Jamison - Ship's Officer

Yale Puppeteers

Puppeteers

Walter Brennan

Clifford (uncredited)

Charles Middleton

Constable Malcolm (uncredited)

Walter Lang

Director

Sidney Buchman

Guión, Guión Adaptado

Fred Niblo Jr.

Guión

Albert Payson Terhune

Guión, Historia

Benjamin H. Kline

Director de Fotografía

Felix Young

Productor

Columbia Pictures

Compañía de Produccion

John Hoffman

Special Effects