George Meeker

as Mr. Crust

as Driller

as Sherman Mallory

as Wolf (uncredited)

as Edmond Slade

as Nick Phillips

as Charles Blake

as Ashley's Aide

as Mr. Jackson

as Lawyer DeWest

as Harry Grange

as Masters

as Nevin Potter

as Fred Peters

as Mr. Norton

as Gordon Blaker

as Police Chief Nelson

as Tom Kelsey, alias Roswell T. Forrest

as Henry Early

as Donald

as Monty Montague

as Sheldon

as Sid Larrick

as Dennis Moore

as Prof. Arthur Hornsby

as Kurt Shendler

as Bill

as Andreas - Her Son