Walter Brennan
Clifford (uncredited)
Robert Young
Jack Forrester
Hobart Bosworth
Alec Klein
Charles Middleton
Constable Malcolm (uncredited)
Walter Connolly
John Forrester aka Eric Jann aka Peter Korotoff
Akim Tamiroff
Peter Korotoff
Henry Kolker
Carlo - the Puppeteer
Maidel Turner
Henrietta Crosland
Gilbert Emery
Professor Weaver
George Humbert
Niccoli
Scotty Beckett
Jack Forrester, Age 4
Doris Kenyon
Margaret Forrester
Rollo Lloyd
Henry Braverman