as Ward Hutton

as Gene Stratton

as Douglas Ferguson

as Bob Harvey

as

as Claude Roberts

as Dave Langdon

as Dr. George Wainright

as Dr. Niblock (as Jack Livingstone)

as Randolph Shaw

as Reginald Dunstan

as Karl le Barron

as Jim Gordon

as Captain Drake

as Patrick McCree

as Charles Lunkin

as Dr. Howard

as Capt. James Morrison

as Sid Wilson

as Aaron King - Art

as Brian Trelawney

as Rolf Rutherford

as Stephen Pachmann (as Jack Livingstone)

as

as Jack Livingston