Hidden Enemy

Warren Hull

Bill MacGregor

Kay Linaker

Sonia Manning

Wilhelm von Brincken

Professor Werner

George Cleveland

John MacGregor

Fern Emmett

Aunt Mary

Edward Keane

Newspaper Editor

Willy Castello

Eric Bowman

John Sheehan

Marden

Herbert Corthell

Pete

Vince Rush

Gruen

Russell F. Schoengarth

Editor

Robert Golden

Editor

Charles Williams

Writer

Harry Neumann

Director of Photography

Karl Zint

Sound Engineer

Edward J. Kay

Music Director

Howard Bretherton

Director

W.B. Eason

Assistant Director

Marion Orth

Writer

T.R. Williams

Producer

Fred Scheld

Associate Producer