Carl Harbord

as Marty Williams

as Inspector Hopkins

as Minor Role (uncredited)

as Leslie Blake

as Coroner

as Dr. Doremus

as Francis McPhillip

as Inspector Sanderson

as Edgar Gray Doe

as Larry Maitland

as George Sandleigh

as Lubbock

as Jacques

as Oliver Desmond

as Lt. Gunther

as Vivian Fairfax

as Maurice Avery

as David Plummet

as Lieutenant Burnham

as Arthur Wardell