| Name | Character | Episodes |
|---|---|---|
| Ann Bell | Marion Jefferson | 31 |
| Claire Oberman | Kate Norris | 31 |
| Stephanie Cole | Beatrice Mason | 30 |
| Emily Bolton | Christina Campbell | 25 |
| Veronica Roberts | Dorothy Bennett | 24 |
| Patricia Lawrence | Sister Ulrica | 22 |
| Jean Anderson | Lady Jocelyn 'Joss' Holbrook | 20 |
| Stephanie Beacham | Rose Millar | 19 |
| Joanna Hole | Sally Markham | 11 |
| Burt Kwouk | Major Yamauchi | 10 |
| Jeananne Crowley | Nellie Keene | 10 |
| Rosemary Martin | Verna Johnson | 9 |
| Eiji Kusuhara | Lt. Sato | 9 |
| Josephine Welcome | Miss Hasan | 9 |
| Burt Kwouk | Capt. Yamauchi | 8 |
| Damien Thomas | Jake Haulter | 8 |
| Renée Asherson | Sylvia Ashburton | 8 |
| Eiji Kusuhara | Captain Sato | 8 |
| Elspet Gray | Phyllis Bristow | 8 |
| Philippa Urquhart | Lillian Cartland | 7 |
| Preston Lockwood | Stephen Wentworth | 7 |
| Ann Queensberry | Judith Bowen | 6 |
| Jonathan Newth | Brigadier Clifford Jefferson | 5 |
| Michael Lees | Colonel Jackson | 3 |
| Barbara Yu Ling | May | 3 |
| Oliver Ford Davies | Priest | 2 |
| Jonathan Newth | Clifford Jefferson | 2 |
| Edna Doré | Edna | 2 |
| Nigel Greaves | Harry Alderston-Bennett | 2 |
| Edmund Pegge | Bernard Webster | 2 |
| Paul Copley | POW | 1 |
| Lim Kay Tong | Soldier | 1 |
| Lim Kay Tong | Bandit Leader | 1 |
| Peter Silverleaf | Yukio | 1 |
| Ric Young | Father Lim | 1 |
| Peter Benson | Jim | 1 |
| Lim Kay Siu | Bandit | 1 |
| Julia Verdin | Jane | 1 |
| Stephanie Cole | Dr. Beatrice Mason | 1 |
| Kenneth MacDonald | Corporal | 1 |
| Albert Moses | Dr. Singh | 1 |
| Mona Bruce | Doctor | 1 |
| Nigel Harman | Timmy | 1 |
| Daniel Hill | Tom Redburn | 1 |
| Robert Lee | Mr. Ling | 1 |
| Christian Rodska | Duncan Fraser | 1 |
| James Walker | Vicar | 1 |
| Bernard Gallagher | Mr. Courtenay | 1 |
| Julia McCarthy | Reverend Mother | 1 |
| Robert Lang | Teddy Forster-Brown | 1 |
| John Rowe | Policeman | 1 |
| Mellan Mitchell | Bank Clerk | 1 |