| Name | Character | Episodes |
|---|---|---|
| Don Warrington | Philip | 28 |
| Frances de la Tour | Ruth | 28 |
| Leonard Rossiter | Rigsby | 28 |
| Gabrielle Rose | Brenda | 4 |
| Judy Buxton | Caroline | 2 |
| Ian Lavender | 1 | |
| Peter Bowles | Hilary | 1 |
| Diana King | Mrs Armitage | 1 |
| David Swift | Gray | 1 |
| Andrew Sachs | Snell | 1 |
| Roger Brierley | Osborne | 1 |
| Helen Fraser | Bride | 1 |
| George Sewell | Detective Constable Baker | 1 |
| Derek Francis | Mr. French | 1 |
| Ann Beach | Mrs. Brent | 1 |
| Alun Lewis | Robin | 1 |
| Robert Dorning | Father | 1 |
| John Clive | Gwyn | 1 |
| John Clive | Samaritan | 1 |
| Brian Peck | Ron | 1 |
| David Daker | Mr. Brent | 1 |
| Jonathan Elsom | Douglas | 1 |
| Gretchen Franklin | Aunt Maud | 1 |
| Andonia Katsaros | Marilyn | 1 |
| Avis Bunnage | Veronica | 1 |
| Robert Gillespie | Gasman | 1 |
| Peter Jeffrey | Ambrose | 1 |
| Gabrielle Rose | 0 | |
| Christopher Strauli | John | 0 |