Carl Harbord

as Marty Williams

as Inspector Hopkins

as Minor Role

as Leslie Blake

as Francis McPhillip

as Coroner

as Dr. Doremus

as Inspector Sanderson

as Edgar Gray Doe

as Larry Maitland

as George Sandleigh

as Lubbock

as Jacques

as Oliver Desmond

as Richard 'Dick' Holmes

as Lt. Gunther

as Michael Turner

as Vivian Fairfax

as Maurice Avery

as David Plummet