Voice of the Whistler

A dying millionaire marries his nurse for companionship, only to experience a miracle cure.

• William CastleDirector
• William CastleWriter
• Wilfred H. PetittWriter
• Mario Castelnuovo-TedescoOriginal Music Composer

• Richard DixJohn Sinclair / John Carter
• Lynn MerrickJoan Martin Sinclair
• Rhys WilliamsErnie Sparrow
• James CardwellFred (Doc) Graham
• Tom KennedyFerdinand / Hammerlock
• Sam AshGibson Motor Car Co. Executive (uncredited)
• Egon BrecherDr. Rose (replaced by Frank Reicher) (uncredited)
• Charles ColemanSinclair's Butler (uncredited)
• Otto ForrestThe Whistler (uncredited)
• Byron FoulgerGeorgie (uncredited)
• Martín GarralagaTony, Fruit Peddler (uncredited)
• John HamiltonDoctor (uncredited)