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Top Billed Cast
Richard Dix
John Sinclair / John Carter
Lynn Merrick
Joan Martin Sinclair
Rhys Williams
Ernie Sparrow
James Cardwell
Fred (Doc) Graham
Tom Kennedy
Ferdinand / Hammerlock
Sam Ash
Gibson Motor Car Co. Executive (uncredited)
Egon Brecher
Dr. Rose (replaced by Frank Reicher) (uncredited)
Charles Coleman
Sinclair's Butler (uncredited)
O
Otto Forrest
The Whistler (uncredited)
Byron Foulger
Georgie (uncredited)
Martín Garralaga
Tony, Fruit Peddler (uncredited)
John Hamilton
Doctor (uncredited)
