George Coulouris as Dr. James Moran

Vera Day as Sally Norton

Peter Forbes-Robertson as Jack Venner (as Peter Wayn)

Joyce Gregg as Mrs. Margaret Santor

Jimmy Vaughn as Tanga

Maxwell Foster as Inspector Brownlow

Edward Higgins as Sgt. Bolton (as Edward Higgings)

Joy Webster as Judy

Robert MacKenzie as Lewis Carling (as Robert Mackenzie)

Norman Claridge as Dr. Patterson

Marpessa Dawn as Native Girl

Sara Leighton as Susan Curtis

Harry Ross as Bristow

Alexander Field as Fair Attendant

David Lawton as Man in Club

John A. Tinn as Lascar (as John Tinn)

Peter Lewiston as Det. Sgt. Freeman

Roger Avon as Constable

Shief Ashanti as Witch Doctor (uncredited)

Marie Devereux as Prostitute (uncredited)

John Grant as Rescue Party Leader (uncredited)

Susan Neill as Orange-Juice Counter Girl (uncredited)

Stanley Platts as Explorers Club Steward (uncredited)