| 2 | Eddie |
David | Sarah's boyfriend; missing |
| | Hannah |
Harrington | Sarah's sister |
| | Alex |
Wallace | Hannah's best friend |
| | Sarah Evelyn |
Mackie | Narrator and protagonist. Aka: Sarah Harrington |
| | Cedric |
| Badger |
| 3 | Joanna |
Monk | Sarah's close friend. Aka: Jo |
| | Thomas |
Stenham | Sarah's best friend. Aka: Tommy |
| | Rudi |
| Jo's son |
| | Shawn |
O'Keefe | Jo's child's father |
| 4 | Mandy |
Lee | Girl who dislikes Sarah |
| | Claire |
| Girl who dislikes Sarah |
| | Jenni |
Carmichael | Sarah's close friend in Los Angeles |
| | Frank |
| Town resident; sheep owner |
| | Lucy |
| Goat |
| 5 | Matthew |
Martyn | Sarah's classmate; bullied Tommy |
| | Carla |
Franklin | Tommy's ex-girlfriend |
| | Zoe |
Markham | Wealthy tech lawyer; Tommy's client |
| | Claire |
Peddler | Matthew's wife |
| 7 | Reuben |
| Sarah's ex-husband |
| 8 | Mrs. |
Rushby | English teacher |
| 12 |
Derek | |
Doctor of Eddie's mother |
| | Steve |
| Squirrel living on Eddie's lawn |
| 13 |
Alan | |
Eddie's best friend |
| 15 |
Javier | |
Jenni's partner |
| | Kaia |
| Reuben's girlfriend |
| 20 |
Patsy | Cline |
American country singer |
| | Ruby |
Merryfield | Former girlfriend of Sarah's grandfather |
| | Diana |
| Sarah's grandmother |
| | Mrs. |
Garcia | Sarah's former employer |
| | Casey |
Garcia | Daughter of Mrs. Garcia |
| | Franc |
Fromage | Reuben's stage name |
| 23 |
Charles | |
Sarah's trustee |
| | Pagliero |
| Man who knows Eddie |
| | Martin |
| Team captain and manager; Eddie's teammate |
| | Edwards |
| Martin's player |
| | Fung-On |
| Martin's player |
| 29 |
Frappuccino | |
Jenni's dog. Aka: Frap |
| 31 |
Jim | Burundo |
Kaia's old friend |
| | Ruth |
| Patient of Sarah and Reuben |
| | Carmen |
| Receptionist |
| 33 |
John | Metherell |
Senior investigating officer |
| 38 |
Nathan | |
Eddie's friend |
| | Greggsy |
| Mandy's former boyfriend |
| | Bradley |
Stewart | Greggsy's cousin; Sarah's first boyfriend |
| | Carole |
Wallace | Mother of Eddie and Alex |
| 40 |
Margaret | |
Eddie's aunt; Carole's sister |
| | Gia |
| Alan's wife |
| | Lily |
| Alan's daughter |
| 41 |
Baz | |
Eddie's friend; works at National History Unit |
| 43 |
Jeanne | Burrows |
Bereavement counselor |
| 44 |
Michael | Harrington |
Sarah's father |
| | Patsy |
Harrington | Sarah's mother |
| | Elsa |
| Sarah's niece |
| | Hamish |
| Hannah's husband |
| 49 |
Hugo | |
Tommy's cat |
