as Aaron King - Art

as Dave Langdon

as Claude Roberts

as Karl le Barron

as Douglas Ferguson

as Capt. James Morrison

as Jim Gordon

as Patrick McCree

as Dr. Howard

as Sid Wilson

as Dr. Niblock (as Jack Livingstone)

as Stephen Pachmann (as Jack Livingstone)

as Jack Livingston

as Reginald Dunstan

as Dr. George Wainright

as Brian Trelawney

as Rolf Rutherford

as Charles Lunkin

as Captain Drake

as Randolph Shaw

as Gene Stratton

as Ward Hutton

as Bob Harvey