| Charlotte |
Arundel | Female editor of Britain's national tabloid. |
| Gary |
Brotherton | Former tabloid editor. |
| Edward |
Buller | Ben's friend; Prime Minister. |
| Joanne |
Buster | Martin's therapist. |
| Anna |
Calhoun | Fliss's old schoolmate. |
| Rosie |
Carson-Smythe | Alcoholic; one of Fliss's friends. |
| Lord |
Cunningham | Founder of *Witness*. |
| Vicky |
Dillane | The girl Ben accidentally killed. |
| Clare |
Dunstable | New police commissioner. |
| Ben |
Fitzmaurice | Martin's best friend. |
| Cosima |
Fitzmaurice | Ben and Serena's daughter. Aka: Pineapple. |
| Cressida |
Fitzmaurice | Ben and Serena's daughter. |
| Felicity |
Fitzmaurice | Ben's sister. Aka: Fliss. |
| George |
Fitzmaurice | Ben's father. |
| Hector |
Fitzmaurice | Ben and Serena's son. |
| Katherine |
Fitzmaurice | Ben's mother. |
| Magnus |
Fitzmaurice | Ben's younger brother, deceased. |
| Serena |
Fitzmaurice | Ben's wife. |
| Lucy |
Gilmour | Martin's wife. |
| Martin |
Gilmour | Ben's best friend; professor. |
| Sylvia |
Gilmour | Martin's mother. |
| Dr. |
Hans | Serena's doctor. |
| Dr. |
Hans | Serena's doctor. |
| Andrew |
Jarvis | Ben's old school friend; hedge fund owner. |
| Bitsy |
Jarvis | Andrew Jarvis's wife. |
| James |
Joyce | Irish novelist and modernist writer. |
| Ni |
Ketut | The woman who accompanied Cosima in Clean Bali Beach. |
| Claire |
Killarney | Member of Parliament for Ashton-under-Lyne. |
| Utagawa |
Kuniaki II | Japanese ukiyo-e artist. |
| John |
Lewis | British politician and public figure. |
| Dominic |
Malik-Edwards | Ben's lawyer; Fliss's lover. |
| Iso |
Malik-Edwards | Dominic Malik-Edwards's wife. |
| Jacob |
Malik-Edwards | One of Martin's students. |
| Mickey |
Minton | YouTuber with millions of followers. |
| Harriet |
Seeker | Television interviewer. |
| Hannah |
Take | Richard Take's wife. |
| Phyllis |
Take | Richard Take's grandmother. |
| Richard |
Take | Ben's closest ally in Parliament; later becomes his rival. |
| Oleander |
Wellington | Current editor at *Witness*. |
| Dorothy |
Windage | Daughter of Britain's most notorious wartime fascist. |
| Emile |
Zola | French novelist and literary critic. |
| Alexander |
| One of the Fitzmaurice family's private bankers. |
| Alfie |
| The man Cosima met. |
| Arthur |
| Richard Take's political adviser. |
| Bear |
| Serena's youngest son. |
| Broccoli |
| Cosima's friend; protester. |
| Cody |
| Martin's stylist. |
| Derek |
| One of Fliss's friends. |
| Harry |
| Violet's friend. |
| Josh |
| Mickey Minton's staff member. |
| Maisie |
| Richard Take's makeup artist. |
| Mark |
| The show's producer. |
| Maurice |
| Martin's cat. |
| Meadow |
| Cosima's friend; protester. |
| Peatbog |
| One of the oldest protesters. |
| Petra |
| One of Fliss's school friends. |
| River |
| Leader of the protest movement. |
| Roger |
| Serena's cousin. |
| Terri |
| Richard Take's secretary. |
| Vanessa |
| Clinic receptionist. |
| Violet |
| Serena's friend; Ben's mistress. |