The Invisible Monster

Richard Webb

Lane Carson

Aline Towne

Carol Richards

Stanley Price

The Phantom Ruler

Lane Bradford

Burton

John Crawford

Harris

George Meeker

"Harry Long"

Edward Keane

Warren Madison

Dale Van Sickel

Otto Wagner, aka "Frank Martin"

Douglas Evans

"James Hunter"

John Hamilton

"Henry Miller"

Roy Gordon

Mr. Moore

Harold Goodwin

Kirk - Body-Shop Henchman [Ch.11] (uncredited)