| Percy | Alleline | One of Bill's boys. |
| Jeannette | Anna | A covert star debriefer. Aka: Anna. |
| A. | Butterfield | One of Peter's colleagues. |
| Winston | Churchill | Prime Minister of U.K. |
| Eleanora | Crail | The library funder. |
| Charles | De Gaulle | The President of France. |
| Stas | De Jong | Leamas's colleague. Head of Berlin Station. |
| Mr. | Denis | The new postman. Aka: Le General. |
| R. Palme | Dutt | A young journalist and communist activist. |
| Mr. | Emile | Lover of Peter's mother. |
| Josef | Fiedler | Mundt's rival. |
| Doris | Gamp-Quinz | One of the female sources. Dr. Rapp's mistress. Aka: Tulip, Venia Lessif. |
| Elizabeth | Gold | Alec's love. Aka: Liz, Venus. |
| Karen | Gold | Sole daughter of Liz Gold. |
| Peter | Guillam | Protagonist. Aka: Mr. Jacques, Adrienne Lessif, Marcel Lafontaine. |
| Joe | Hawkesberry | Paris's head of the station. |
| Bill | Haydon | The soviet double agent. |
| Etienne | Jabroche | A colonel from the French Embassy. |
| Oliver | Lacon | Control's trusted ally at Treasury. |
| Bernie | Lavendar | Gentlemen's tailor to the diplomatic corps. |
| Alec | Leamas | Peter's co-spy in Windfall Operation. Deceased. |
| Christoph | Leamas | Sole heir of Alec Leamas. |
| Bert Arthur | Lownes | Owner of Lownes; the people's grocer. |
| Ingeborg | Lugg | A covert star debriefer. Aka: Louisa. |
| Millie | McCraig | Smiley's former agent. |
| Ashley | Meadow | A doctor. Circus's friend. Aka: Frank. |
| Oliver | Mendel | A retired police officer. |
| Hans-Dieter | Mundt | The man who killead Leamas. |
| Sally | Ormond | Jerry's wife. |
| Jim | Prideaux | One of Peter's colleagues. |
| Gustav | Quinz | Doris's son. |
| Lothar | Quinz | Doris's husband. |
| Brigitte | Rapp | Emmanuel's wife. |
| Emmanuel | Rapp | The KGB-trained director of overseas operations. |
| Helga | Riemick | Karl's mother. |
| Karl | Riemick | The Doctor of the Kopenick. Aka: Mayflower. |
| Manfred | Riemick | Karl's father. |
| Connie | Sachs | A double agent at Moscow Centre. |
| George | Smiley | The spymaster. Aka: The Circus. |
| Alwyn | Withers | The British Ambassador. |
| Amoureuse | | Peter's Irish setter. |
| Artemis | | The old grey horse. |
| Barney | | De Jong's daughter. |
| Bernie | | Dolly's companion. |
| Bland | | One of Bill's boys. |
| Bunny | | The secret service lawyer. |
| Catherine | | Isabelle's mother. Peter's companion. |
| Control | | Smiley's boss. |
| Daffodil | | One of the sub-sources. |
| Dagmar | | A Swedish journalist. |
| Dolly | | Markus's friend. |
| Esterhhase | | One of Bill's boys. |
| Friede | | Jim's librarian friend. |
| Harper | | Lowe's gay partner. Tulip's colleague. |
| Herbert | | A Circus driver. |
| Honore | | Peter's friend. |
| Jack | | Markus's colleague. |
| Laura | | Bunny's colleague. |
| Leonard | | The counsel. |
| Loftus | | De Jong's dog. |
| Lotte | | Doris's sister. |
| Lowe | | Harper's gay partner. Tulip's colleague. |
| Markus | | Peter's uncle. Aka: Collins. |
| Mars | | A 2nd assistant librarian. |
| Murphy | | Cousin of Peter's father. |
| Pepsi | | Smiley's secretary. |
| Petal | | One of the sub-sources. |
| Pippa | | De Jong's wife. |
| Sandy | | The girl Peter falls in love with. Aka: Emily. |
| Tabitha | | One of Bunny's colleagues. A lawyer. |
| Tania | | Butterfield's secretary. |
| Violet | | One of the sub-sources. |
| Yves | | The occasional laborer. |
