- Richard Burton
- Alec Leamas
- Claire Bloom
- Nan Perry
- Oskar Werner
- Fiedler
- Peter van Eyck
- Hans-Dieter Mundt
- George Voskovec
- East German Defense Attorney
- Sam Wanamaker
- Peters
- Cyril Cusack
- Control
- Michael Hordern
- Ashe
- Bernard Lee
- Patmore
- Martin Ritt
- Director, Producer
- Paul Dehn
- Writer
- John le Carré
- Writer
- Guy Trosper
- Writer
- Oswald Morris
- Cinematographer
- Anthony Harvey
- Film Editing
- Sol Kaplan
- Original Music
- Tambi Larsen
- Art Director
- Ted Marshall
- Art Director
- Hal Pereira
- Art Director
- Josie MacAvin
- Set Decoration
- Sophie Devine
- Costume Design
- George Frost
- Makeup Artist
- Wim Lindner
- Production Manager
