The Master Key
"13 Chapters of Terrific Thrills!"
Before the outbreak of WWII, Nazi sympathizers plot to undermine America.


Agent Tom Brant
Janet Lowe

Jack Ryan

Gerhard Doenitz / Garret Donahue

Prof. Elwood Henderson

Dorothy Newton

Aggie

Herman

Police Chief Michael J. O'Brien

Arnold Hoffman

Migsy
Dan

Spike

Walter Stark

Director
Producer

Stunts

Director
Story
Story

Stunts
Editor
Editor
Editor
Editor

Stunts
Stunts
Stunts
Screenplay
Screenplay
Editor
Stunts
Screenplay
Director of Photography
Director of Photography