Jon Hall

as Robert Griffin

Evelyn Ankers

as Julie Herrick

Alan Curtis

as Mark Foster

Leon Errol

as Herbert Higgins

John Carradine

as Dr. Peter Drury

Gale Sondergaard

as Lady Irene Herrick

Lester Matthews

as Sir Jasper Herrick

Halliwell Hobbes

as Cleghorn, the butler