Counterspy

Dermot Walsh

as Frank Manning

Hazel Court

as Clare Manning

Hermione Baddeley

as Madame Del Mar

Alexander Gauge

as Smith

Bill Travers

as Rex

Archie Duncan

as Jim Fenton

James Vivian

as Larry Fenton

Frederick Schrecker

as Plattnaur

John Penrose

as Paulson

Hugh Latimer

as Inspector Barlow

Beryl Baxter

as Plattnauer's Accomplice

Gwen Bacon

as Matron

Maxwell Foster

as Dr. Stevenson

Monti DeLyle

as Dance Director

Howard Lang

as Policeman