- Produced and directed by:
- Morris Barry
- Det.-Inspector Osgood:
- Harvey Ashby
- Kate Harvester:
- Brenda Kaye
- Prescott:
- Frederick Piper
- Rachel Stein:
- Zeynep Tarimer
- Paul Sabin:
- William Dexter
- Harry:
- Jerold Wells
- Baines:
- Geoffrey Toone
- Nicky:
- Charles Laurence
- Derek Farrow:
- Leonard Cracknell
- Claire:
- Caroline Hunt
- Hugo Kellner:
- Alan Rowe
- Harbord:
- Colin Douglas
- Jeremy Quest:
- Hugh Latimer
- Alexa:
- Yvette Rees
- Martine:
- Margaret Nolan
- Colin:
- Paul Grist
- Hodek:
- Richard Marner
- Ben Graham:
- Edwin Richfield
- Anne Faulkner:
- Ellen McIntosh
- Von Ritter:
- Michael Wolf
- Vargas:
- Stephen Hubay
- Waiter:
- John Gill