| Steven | Allen | The chief inspector who investigated the incident at the Grove. |
| Justice | Alverstone | The judge on Gabriel's murder case. |
| Alicia | Berenson | A girl who killed her own husband. A painter. |
| Gabriel | Berenson | Alicia's husband. Deceased. |
| Max | Berenson | Alicia's lawyer. Gabriel's brother. |
| Tanya | Berenson | Max's wife. |
| W.R | Bion | A psychoanalyst. |
| Stephanie | Clark | The manager at the Grove. |
| Lazarus | Diomedes | Professor of Psychiatry at Imperial College. |
| Patrick | Doherty | Max's colleague. |
| Kathryn | Faber | Theo's wife. Aka: Kathy. |
| Theo | Faber | Alicia's psychotherapist. |
| Rowena | Hart | Alicia's art therapist. |
| Barbie | Hellman | Alicia and Gabriel's neighbor who heard the gunshot at their house. |
| Jean-Felix | Martin | Owner of a small Soho Gallery that represents Alicia. |
| Eva | Rose | Alicia's mother. |
| Lydia | Rose | Alicia's aunt. |
| Paul | Rose | Alicia's cousin. Lydia's son. |
| Vernon | Rose | Alicia's father. |
| Indira | Sharma | A consultant psychotherapist at the Grove. |
| Admetus | | Alcestis's husband. |
| Alcestis | | The heroine of a Greek Myth. The title of Alicia's painting. |
| Christian | | The head of Alicia's care team. |
| Daniel | | Kathryn's boyfriend. |
| Elif | | One of the violent nurses at the Grove. |
| Marianne | | Theo's girlfriend. |
| Meredith | | A Canadian sociology student. |
| Nicole | | Kathy's friend. |
| Nicole | | Kathy and Theo's acquaintance. |
| Ruth | | Theo's former psychotherapist. |
| Tony | | Kathy's director. |
| Yuri | | The head psychiatric nurse. |
