| 1 | Margaret | | One of the nursing sisters. |
| | Capt. | Bartlett | Ship captain. |
| | Elizabeth | Crawford | Narrator. AKA: Bess. |
| | Arthur | Graham | One of Bess's patients. |
| | Eileen | | Irish nurse. |
| | Dr. | Menzies | Doctor. |
| | Marilyn | Johnson | One of the nursing sisters. |
| | Browning | | Miss Crawford's friend. Soldier. |
| | Dr. | Brighton | One of the army doctors. |
| | Dr. Paterson | | One of the army doctors. |
| | Harry | Dyke | One of the officers. |
| | Lawes | | Third officer. |
| | Barbara | Mercer | One of the nursing sisters. |
| | Lucy | | One of the nurses. |
| 2 | Richard | Crawford | Career officer. Bess's father. |
| | Mrs. | Hennessey | Bess's guardian. |
| | Marianne | | Bess's flat mate. |
| | Ambrose | Graham | Arthur's father. |
| | Peter | Neville | Ambrose's wife's cousin. |
| | Florence | Nightingale | Richard's colleague. |
| 3 | Dr. | Price | Bess's doctor. |
| | Jonathan | Graham | Arthur's brother. |
| | Simon | Brandon | Bess's friend. |
| | Jack | Franklin | Bess's former neighbor. |
| | Capt. | Banks | Captain. Bess's acquaintance. |
| | Robert | Douglas | Mrs. Graham's right-hand man. |
| | Susan | | Mrs. Graham's maid. |
| | Dr. | Philips | Mrs. Graham's doctor. |
| | Timothy | Graham | Arthur's brother. |
| 4 | Ted | Booker | Dr. Philips's patient. AKA: Theodore Russell Booker. |
| | Harry | Booker | Ted's brother. |
| | Dr. | Hadley | The Crawford's former doctor. Deceased. |
| | Peregrine | Crawford | Arthur's half brother. |
| | Mrs. Hester | Clayton | One of the old spinsters. A seamstress. |
| | Sally | Booker | Ted's wife. |
| | Marion | Denton | Sally's mother. |
| 5 | Mrs. | Nichols | The Graham's cook. |
| | Christopher | Montgomery | The rector. |
| | Matty | West | The Graham's old housekeeper. Susan's mother. |
| 6 | Elayne | | Bess's former flat mate. |
| | Anthony | | Elayne's lover. |
| 7 | Mr. | Lessing | Montgomery's organist. |
| | Craig | | Montgomery's predecessor. |
| | Mrs. | Turner | One of Graham's neighbors. |
| 8 | Inspector | Gadd | Police inspector. |
| | Inspector | Howard | The new inspector. |
| | Margaret | | Ambrose's first wife. |
| | Nathan | Appleby | Peregrine's tutor. |
| 10 | Mrs. | Oldsley | Asylum housekeeper. |
| | Lady | Parsons | Frederick's widow. |
| 11 | Mrs. | Gladwynn | Richard's
tailors. |
| | Mr. | Stanley | Mr. Gladwynn's clerk. |
| 12 | Lily | Mercer | The girl Peregrine killed. |
| | Diana | James | One of Bess's flat mates. |
| | Ralph | | Diana's boyfriend. |
| | Terrence | Owens | Cab driver. |
| | Mrs. | Gadd | Inspector Gadd's widow. |
| | Hutter | | The owner of the barn where Timothy was found. |
| | Mrs. | Wallace | The laundress. |
| 13 | Mary | | Appleby's wife. |
| | Sarah | Cunningham | Mary's neighbor. |
| 14 | Simon | Brandon | Colonel Sahib's colleague. |
| | Mrs. | Talbot | Lily's former employee. |
| | Daisy | | Lily's coworker. |
| | Mr. | Homer | Daisy's employer. |
| | Dr. | Sinclair | The Asylum's doctor. |
| 16 | | Hepple | The doctor removed from Barton's Asylum. |
| 17 | Mrs. | Venton | Nursing burn victims. |
| | Mr. | Johnson | Tea house owner. |
| | Constable | Brewster | Police constable. |
| | Capt. | Raynor | Colonel Sahib's former colleague. |
| | Margaret | | Raynor's wife. |
| | William | | Raynor's son. |
| 18 | Mr. | Freeman | Bess's driver. |
| | Melinda | Crawford | Colonel Sahib's old acquaintance. |
| | Shanta | | Melissa's caretaker. |
| | Ram | | Melinda's majordomo. |
| 19 | Constable | Mason | The policeman who arrested Peregrine. |
| | Mr. | Bateman | The man who helped Bess. |
