The Man Who Wouldn't Talk

American scientist Dr. Frank Smith is brought to Britain to help the C.I.A. There is a defecting East block scientist they want him to debrief. The commies are less than amused and set Dr. Smith up for a murder.

• 
  Herbert Wilcox
• 
  Ted Sturgis

• 
  Anna Neagle
  Mary Randall, Q.C.
• 
  Anthony Quayle
  Dr. Frank Smith
• 
  Zsa Zsa Gabor
  Eve Trent
• 
  Katherine Kath
  Yvonne Delbeau
• 
  Dora Bryan
  Telephonist
• 
  Patrick Allen
  Jim Kennedy
• 
  Hugh McDermott
  Bernie
• 
  Leonard Sachs
  Professor Horvard
• 
  Edward Lexy
  Hobbs
• 
  John Paul
  John Castle
• 
  John Le Mesurier
  Judge
• 
  Anthony Sharp
  Baker
• 
  Anthony Pendrell
  Jury Foreman
• 
  David Aylmer
  Cross
• 
  Lloyd Lamble
  Bellamy
• 
  Neal Arden
  (uncredited)
• 
  Ballard Berkeley
  Court Clerk (uncredited)
• 
  Cyril Chamberlain
  Liftman (uncredited)
• 
  John Harvey
  (uncredited)
• 
  Jennifer Jayne
  (uncredited)