Alec Guinness (The Cardinal)
Jack Hawkins (The Interrogator)
Wilfred Lawson (The Jailer)
Jeannette Sterke (The Girl)
Kenneth Griffith (The Secretary)
Ronald Lewis (The Warder)
Richard Leech (Actor/Actress)
Gerard Heinz (The Doctor)
Raymond Huntley (The General)
Mark Dignam (The Governor)