- Mike Gwilym - Det. Constable Dan Spencer
- Edward Hardwicke - Lord Dunning
- John Forbes-Robertson - Sgt. Nash
- Hugh Lloyd - Cab Driver
- Rita Webb - Mrs. Loewenthal
- Maurice Colbourne - Sampson
- Nicholas Donnelly - Superintendent
- Ian Brimble - Constable
- Alan Ford - Peters
- Cyril Conway - Man in 17
- David Sterne - Driver
- Charles Cork - Driver's Mate
- Eric Richard - Airline Clerk
- Howard Bell - Constable
- Norman Mann - Williams
- Tony Meyer - Martin
- Michael Watkins - Rogers
- Gerard Ryder - Smith
- Moti Makan - Mr Mukerjee
- Katherine Wilkinson - Susan Stowe
- Arnold Diamond - Head Waiter
- Pat Gorman - Policeman (uncredited)
- Sally Lahee - Woman in No.17
- Eric Kent - Workman (uncredited)
- Guy Standeven - Passer-by (uncredited)
-
Shigeyasu Yamauchi
-
Takao Koyama
-
Justin Cook
Capítulo disponible en las siguientes plataformas:
