Rodney Bewes Bob Actor Brian Glover Actor James Bolam Terry Actor Margaret Nolan Guest Star Brigit Forsyth Thelma Actor Sandra Bryant Guest Star Donald Gee Guest Star Robert Gillespie Police Sergeant Actor Bill Owen Guest Star Norman Mitchell Guest Star Sandra Downs Actor Olive Milbourn Actor Iain Blair Guest Star Joan Hickson Guest Star John Barrett Guest Star Derek Etchells Stan Actor Julian Holloway Actor Michael Stainton Policeman Actor Anita Carey Guest Star Shay Gorman Guest Star James Gilbert Director, Producer Dick Clement Writer Ian La Frenais Writer