| | | | Mid Atlantic 17 September 1940 |
| | Alice | King | Protagonist. |
| | | | Part 1 - Departure |
| 1 | Katherine | King | Alice's king. AKA: Kitty. |
| | Maud | | Alice's boss and former teacher. |
| | Walter | King | Alice's brother. |
| | Terrence | | Kitty's lover. AKA: Terry. |
| | Patrick | Swine | Kitty's ex-boyfriend. |
| | Lucy | | Alice's cousin. |
| 2 | Lily | Elizabeth-Nicholls | One of the evacuees. |
| | Mrs. Hopkins | | Lily's neighbor. AKA: Mrs. H. |
| | Georgina | Nicholls | Lily's daughter. AKA: Georgie. |
| | Peter | Nicholls | Lily's husband. Deceased. |
| | Arthur Peter | Nicholls | Lily's son. |
| | Harry | Gilbert | Georgie's classmate. |
| 3 | Anthony | Quinn | The head of the CORB program. AKA: Tony. |
| 4 | Isobel | Carr | Lily's employer. |
| | Clemmie | Carr | Isobel's daughter. |
| | Charlotte | Carr | Isobel's daughter. |
| | Tom | Carr | Isobel's husband. |
| | Molly | Carr | Isobel's daughter. |
| 6 | Ada | Fortune | The woman that Lily met. One of the evacuees. |
| 9 | Eleanor | Heath | The lead escort. |
| | Howard Aidan | Keane | The man that Lily met. The man who helped the kids. |
| 10 | Elsie | Farnaby | One of the evacuees. |
| | William | Farnaby | Elsie's son. |
| | Mary | Farnaby | Elsie's daughter. |
| | George | Nicholls | Lily's father-in-law. |
| | Mrs. | Fletcher | A shop owner. |
| 11 | Beryl | Barnes | One of the CORB escorts. |
| 12 | David | Farnaby | Elsie's husband. |
| 14 | Mr. | Winoborne | The man that Lily met at the bus. |
| | | | Part 2 - Absence |
| 16 | Billy | Fortune | Ada's son. |
| 18 | Brian | Walsh | One of the kids in Alice's lifeboat. |
| | Robert | Beck | One of the kids in Alice's lifeboat. |
| | Hamish | Mackie | One of the kids in Alice's lifeboat. |
| | Owen | Shaw | An ex-wing commander. AKA: Richard Heath. |
| 19 | Nemo | | The Captain. |
| 20 | Bobby | | A British crewman. |
| | Jimmy | | The first to respond when Alice cries for help. |
| | William | | Jimmy's father. |
| | Mr. | Harlow | The classical pianist. |
| | Mr. | Sherwood | One of the evacuees. |
| | Thomas | Prendergast | Helene's
fiancé. |
| | Helene | | A Canadian actress. |
| 34 | Ed | Atkinson | Ministry of Shipping. |
| | | | Part 4 - Recovery |
| 44 | Mr. | Kettlewell | Lily's neighbor. |
| 45 | Barbara | King | Alice and Kitty's mother. |
