Voice of the Whistler

Richard Dix

as

John Sinclair ...

Lynn Merrick

as

Joan Martin Si...

Rhys Williams

as

Ernie Sparrow

James Cardwell

as

Fred (Doc) Gra...

Tom Kennedy

as

Ferdinand / Ha...

Sam Ash

as

Gibson Motor C...

Egon Brecher

as

Dr. Rose (repl...

Charles Coleman

as

Sinclair's But...

Otto Forrest

as

The Whistler (...

Byron Foulger

as

Georgie (uncre...

Martín Garrala...

as

Tony, Fruit Pe...

John Hamilton

as

Doctor (uncred...

Stuart Holmes

as

Sinclair Execu...

Wilbur Mack

as

Sinclair Execu...

Charles Marsh

as

Sinclair Execu...

Harold Miller

as

Sinclair Execu...

Forbes Murray

as

Sinclair Execu...

Gigi Perreau

as

Bobbie (uncred...

Frank Reicher

as

Dr. Rose (uncr...

Clinton Rosemo...

as

Train Porter (...

Frank J. Scann...

as

Druggist (uncr...

Minerva Urecal

as

Georgie's Wife...

Robert B. Will...

as

Pharmacist (un...

Douglas Wood

as

Paul Kitridge ...