PR | Eleanor | Vansittart | History and German teacher at Meadowbank School. |
| Honoria | Bulstrode | Meadowbank School headmistress. |
| Miss | Chadwick | Co-founder of Meadowbank School. aka: Chaddy. |
| Mrs. | Bird | Teacher. |
| Mrs. | Rowan | Junior mistress at Meadowbank School. Psychologist. |
| Ann | Shapland | Mrs. Bulstrode's secretary. |
| Alistair | Hargreaves | Mrs. Vansittart's acquaintance. |
| Alison | | Lives at Meadowbank School. |
| Mervyn | Todhunter | Oil company executive. |
| Dennis | Rathbone | Ann's boyfriend. |
| Elspeth | Johnson | Meadowbank's matron. |
| Pamela | | Adam's new friend. |
| Angele | Blanche | New French mistress. |
| Eileen | Rich | English and Geography teacher. |
| Miss | Blake | Junior mistress. |
| | Guiseppe | Man who wants to enroll his daughter at Meadowbank. |
| Gerald | Hope | Mother whose daughter is enrolled at Meadowbank. |
| Henrietta | Hope | Intelligent student. Gerald's daughter. |
| Princess | Shaita | New student. |
| Mrs. | Upjohn | Julia's mother. |
| Julia | Upjohn | New student. |
| Veronica C. | Sandways | Charming woman who is attached to her twin daughters. |
| Major Carlton | Sandways | Lady Veronica's husband. |
| Edith | Johnson | Lady Veronica's old maid. Miss Johnson's sister. |
1 | Prince Ali | Yusuf | Hereditary sheikh of Ramat. Ruler of Ramat. |
| Bob | Rawlinson | Prince Ali's best friend. The Squadron Leader. |
| Achmed | Abdullah | Prince Ali's grandfather. |
2 | Joan | Sutcliffe | Bob's sister. |
| Jennifer | Sutcliffe | Joan's daughter. |
| Mr. | Hurst | Mrs. Hurst's husband. A man Joan had a picnic with. |
| Mrs. | Hurst | Mr. Hurt's wife. A woman Joan had a picnic with. |
| John | Edmunson | Third secretary at British Embassy. |
3 | Colonel | Pikeaway | Senior member of the Special Branch. |
| Derek | O'Connor | A member of the foreign office. |
| Ronnie | | Was undercover as a gardener at Meadowbank. |
| Mr. | Robinson | Englishman who helped Colonel Pikeaway. |
| Angelica | de Toredo | Spanish dancer in a local Cabaret. |
4 | Henry | Sutcliffe | Joan's husband. Jennifer's father. |
| Andrew | Ball | Thief in Sutcliffe's house. |
| Mrs. | Ellis | Sutcliffe's deaf neighbor. |
| Rosamond | | Jennifer's aunt. |
5 | Miss | Laurie | Drawing mistress. |
| Grace | Springer | Gym teacher. Physical therapist. |
| Margaret | Gore-West | Senior prefect. |
| Princess | Ingrid | Girl enrolled in Meadowbank. |
| Briggs | | Gardener at Meadowbank. |
| Dick | | Edith's husband. |
| Oliver | | Edith's son. |
| Kate | | Edith's daughter. |
| Gloria | | Miss Vansittart's friend. |
| Marjorie | | Gloria's daughter. |
| Louis | | Adam's new friend. |
| Mary | Vyse | Adam's new friend. |
6 | Vera | Lorrimer | Girl enrolled in Meadowbank. |
| Andrew | Peters | Ann's former employer. |
| Monica | Lord | Actress. Ann's former employer. |
| Genevieve | Depuy | Teacher. |
7 | Anderson | | Professor. |
8 | Sergeant | Green | St. Cyprian police. |
| Inspector | Kelsey | Police detective. |
| Jane | | Girl who has a problem with her ears. |
9 | Mr. | Stone | Chief of Police. |
| Percy | Bond | Police sergeant. |
10 | Emir | Ibrahim | Princess Shaista's uncle. |
11 | Mrs. | Kolinsky | Woman staying at the Grand Hotel. |
12 | Isabel | | Julia's aunt. |
| Mrs. | Campbell | Jennifer's grandmother. aka: Aunt Gina. |
13 | Henry | Banks | Chairman of the Governors. |