- Ian McShane - Curtis
- Terence Rigby - Matthews
- Malcolm Terris - Maxwell
- John Bird - Cyril
- John Bird - Cyril (uncredited)
- James Bolam - Mark Omney
- Michael Culver - Dr. Walcott Brown
- Alan Ford - Bill
- Aimée Delamain - Mrs. Franklyn
- Aimée Delamain - Mrs, Franklyn
- Anton Phillips - Barman
- Anton Phillips - Roger
- Patrick Malahide - Police Sergeant
- Harry Fielder - Heavy at Rail Station (uncredited)
- Georgine Anderson - Mrs. Forde
- Prentis Hancock - Desk Sergeant
- Prentis Hancock - 2nd Interrogator
- Christopher Benjamin - Det. Inspector Tarrant
- John Shrapnel - Vincent Craig
- Gerald Sim - Francis Durrant
- Paul Angelis - Tom Choley
- David Hargreaves - Ken Holbrook
Alan Ford interpreta a Bill en la serie.
Ian McKellen interpreta a Anthony Skipling en la serie.
Capítulo disponible en las siguientes plataformas:
