Deadly Nightshade (1953)

Emrys Jones

as Robert Matthews / John Barlow

Zena Marshall

as Ann Farrington

John Horsley

as Inspector Clements

Joan Hickson

as Mrs. Fenton

Hector Ross

as Canning

Roger Maxwell

as Col. Hector Smythe

Marne Maitland

as Heinz

Ian Fleming

as Dr. Wilson

Frederick Piper

as Thomas Pritchard

George Pastell

as Ferrari

V

Victor Platt

as Sergeant