- Aden Gillett - Matthew Clay
- Ian Ogilvy - Max Donaldson
- Charles Kay - Mr. Kaufman
- Joan Hickson - Miss Wainwright
- Edward Hardwicke - Gavin Barlow
- Eleanor Bron - Josie Barlow
- Beatie Edney - Pippa Millington
- Terence Alexander - Harry Scott-Forbes
- Sylvia Syms - Viven Scott-Forbes
- Barbara Jefford - Monica Dawes
- Joanna David - Hester Peters
- Alan MacNaughtan - Bernard Smith
- Georgine Anderson - Christine Turner
- John Castle - Dr. David Warreck
- Amanda Root - Sarah Penwarden
- Charles Dance - James Latimer
- Patricia Driscoll - Ann Aysgarth
- Tim Seely - Weir
- Emrys James - Chief Inspector Dryden
- Claire Bloom - Lady Penwarden
- Trevor Howard - Sir Daniel Penwarden
- Simon Shepherd - Lawrence Penwarden
- Julia Goodman - Julie Penwarden
- Janet Suzman - Avon Eve
- Jane Asher - Sonia
- Alison Skilbeck - Sara
- Jeremy Nicholas - Sir Jonathan Sibley
- Jackie Smith-Wood - Lady Tania Sibley
- Emma Vansittart - Maria
- Renée Asherson - Helen, Lady Sibley
- Patricia Hodge - Margaret Tutting
- William Simons - Arthur Henry Strapp
- Judy Campbell Exner - Hermione Tutting
- Alan David - Jeremy Semper
- Michael Jayston - Austin Tupp
- Patrick Allen - Gilbert Smith
- Elizabeth Spriggs - Evelyn Smith
- John Wheatley - Richard Smith
- Joan Moon - Juliet Smith
- James Bree - Bill Norton
- Rhoda Lewis - Meg Norton
- Pieter Rogers
Charles Dance interpreta a James Latimer en la serie.
Edward Hardwicke interpreta a Gavin Barlow en la serie.
Capítulo disponible en las siguientes plataformas:
