Guest Stars Jane Wymark as Joyce Barnaby Barry Jackson as Dr. George Bullard Peter Davison as Nicky Frazer Alice Krige as Jenny Frazer Neil Stuke as Glen Jarvis Clive Russell as Seth Comfort Anna Massey as Brenda Packard Timothy Carlton as Chief Constable Stephanie Jacob as Alice Tim Treloar as PC Reg Jack Walker as Harry Fowler Tom Rooke as Young Nicky Rosalind Drury as Young Jenny Claudia Elmhirst as Amanda Watson Josef Lindsay as Young Boy Benjamin Whitrow as Sir Malcolm Frazer John Bowe as Jimmy Wells Clive Wood as Geoffrey Larkin