Character Name : John Sinclair / John Carter

Original Name : Richard Dix

Gender : Male

Character Name : Joan Martin Sinclair

Original Name : Lynn Merrick

Gender : Female

Character Name : Ernie Sparrow

Original Name : Rhys Williams

Gender : Male

Character Name : Fred (Doc) Graham

Original Name : James Cardwell

Gender : Male

Character Name : Ferdinand / Hammerlock

Original Name : Tom Kennedy

Gender : Male

Character Name : Gibson Motor Car Co. Executive (uncredited)

Original Name : Sam Ash

Gender : Male

Character Name : Dr. Rose (replaced by Frank Reicher) (uncredited)

Original Name : Egon Brecher

Gender : Male

Character Name : Sinclair's Butler (uncredited)

Original Name : Charles Coleman

Gender : Male

Character Name : The Whistler (uncredited)

Original Name : Otto Forrest

Gender : Male

Character Name : Georgie (uncredited)

Original Name : Byron Foulger

Gender : Male

Character Name : Tony, Fruit Peddler (uncredited)

Original Name : Martín Garralaga

Gender : Male

Character Name : Doctor (uncredited)

Original Name : John Hamilton

Gender : Male

Character Name : Sinclair Executive (uncredited)

Original Name : Stuart Holmes

Gender : Male

Character Name : Sinclair Executive (uncredited)

Original Name : Wilbur Mack

Gender : Male

Character Name : Sinclair Executive (uncredited)

Original Name : Charles Marsh

Gender : Male

Character Name : Sinclair Executive (uncredited)

Original Name : Harold Miller

Gender : Male

Character Name : Sinclair Executive (uncredited)

Original Name : Forbes Murray

Gender : Male

Character Name : Bobbie (uncredited)

Original Name : Gigi Perreau

Gender : Female

Character Name : Dr. Rose (uncredited)

Original Name : Frank Reicher

Gender : Male

Character Name : Train Porter (uncredited)

Original Name : Clinton Rosemond

Gender : Male

Character Name : Druggist (uncredited)

Original Name : Frank J. Scannell

Gender : Male

Character Name : Georgie's Wife (uncredited)

Original Name : Minerva Urecal

Gender : Female

Character Name : Pharmacist (uncredited)

Original Name : Robert B. Williams

Gender : Male

Character Name : Paul Kitridge - Attorney (uncredited)

Original Name : Douglas Wood

Gender : Male