| Mikhail | Abramov | One of Gabriel's colleagues. |
| Gabiel | Allon | Protagonist. |
| Irene | Allon | Gabriel and Chiara's daughter. |
| Raphael | Allon | Gabriel and Chiara's son. |
| Miranda | Alvarez | The front woman in a rival forgery. |
| Mrs. | Antonelli | Irene and Raphael's socialist teacher. |
| Guillaume | Apollinaire | A poet and writer. Pablo's friend. |
| Sarah | Bancroft | Isherwood's partner. |
| Ray | Bennett | The Pierre Hotel's head of security. |
| Carl | Bernstein | Bob Woodward's partner at Washington Post. |
| Louise | Beroud | A painter. |
| Valerie | Berrangar | The woman Julian is supposed to meet. |
| Cordelia | Blake | Oliver's long-time receptionist. |
| Tyle | Briggs | Phillip's head of security. |
| Evelyn | Buchanan | An award-winning reporter. |
| Tom | Buchanan | Evelyn's husband. |
| Ainsley | Cabot | An Art collector. |
| Antonio | Caliari | Paolo's father. |
| Bernardo | Canal | The father of Canaletto. |
| Umberto | Conti | The greatest art restorer. |
| Jeremy | Crabbe | The head of Old Master Department of Bonhams. |
| Penelope | Cruz | Oliver's mistress. |
| Aelbert | Cuyp | A Dutch golden age painter. |
| General | Cyclops | Durand's friend. |
| Pierre-Henri | De Valenciennes | One of the most important landscape artists. |
| Arma | Del Carabinieri | Rosetti's employer. |
| Mr. | Didier | A collector of considerable expertise. Durand's client. |
| Oliver | Dimbleby | A London Art dealer. |
| Sterling | Dunbar | A wealthy real estate broker. |
| Niles | Dunham | An Old Master specialist from the national gallery. |
| Maurice | Durand | The professional art thief. |
| Max Van | Egan | A reactionary industrialist. |
| Cesare | Ferrari | Commander of Art Squad. |
| Georges | Fleury | A French Artist who specialized in 17th and 18th centuries. |
| Viktor | Frankel | Gabriel's grandfather. |
| Aiden | Gallagher | The founder of Equus Analytics. |
| Yossi | Gavish | One of Gabriel's senior staff. |
| Francois | Gerard | A painter. |
| Yuval | Gershon | The director-general of Unit8200. |
| Bruno | Gilbert | Fleury's receptionist. |
| Ellis | Gray | Head of Art-based lending at JP Morgan. |
| Roddy | Hutchinson | A London Art dealer. |
| Samuel | Isakowitz | An Art dealer. Julian's father. |
| Julian | Isherwood | Owner of Isherwood Fine Arts. Gabriel's art restorer. |
| Christopher | Keller | Gabriel's companion. A contract killer. Aka: Benjamin Reckless. |
| Juliette | Lagarde | Valerie's daughter. |
| Eli | Lavon | A surveillance artist for Israeli Foreign Intellegence. |
| Simon | Levinson | An Art dealer. |
| Nicky | Lovegrove | An art advisor. |
| Amelia | March | A reporter at ARTnews. |
| Lucien | Marchand | Vionnet's husband. An Art forgerer. |
| Peter | Marlowe | Sarah's husband. |
| Hector | Martinez | Magdalena's lover and dealer. |
| Jacques | Menard | Ferrari's French counterpart. |
| Simon | Mendelhall | The chief auctioneer at Christie's. |
| Natalie | Mizrahi | Mikhail's wife. |
| Rene | Monjean | Durand's friend. |
| Lindsay | Morgan-Somerset | Phillip's wife. |
| Magdalena | Navarro | The Spanish Art forgerer. |
| Uzi | Navot | A director of the officer. |
| Anton | Orsati | Patriarch of one of the island's most notorius families. |
| Maximilien Alphonse | Paupardin | The Salon Carre guard. |
| Vincenzio | Peruggia | The Italian carpenter who helpted build Mona Lisa's protective case. |
| Pablo | Picasso | A Spanish painter. |
| Gustavo | Ramirez | Soledad's husband. |
| Soledad | Ramirez | Phillip's housekeeper. |
| Warren | Ridgefield | One of Phillip's investors. |
| Anna | Rolfe | Gabriel's friend. |
| Augustus | Rolfe | A Swiss banker. Anna's father. |
| Yaakov | Roosman | One of Gabriel's senior staff. |
| Luca | Rosetti | The man from Art Squad. A spy. Aka: Alessandro Calvi, Giovanni Rinaldi. |
| Martin | Roth | Silk's old friend. Aka: Marty. |
| Dina | Sarid | Archivist of Palestinian and Islamic Terrorism. |
| Leonard | Silk | A retired CIA. Phillip's private detective. |
| Phillip | Somerset | An Art Investor. The man who bought the portrait of an unknown woman. |
| Rimona | Stern | Gabriel's chief of collections. |
| Ronald | Sumner-Lloyd | Julian's attorney. |
| Francesco | Tiepolo | Owner of a restoration compnay. |
| Edmond | Toussaint | A gallery owner and art forgerer. Lucien's former boss. |
| Anthony | Van Dyck | The painter of "Portrait of an Unknown Woman". |
| Kenny | Vaughan | Phillip's colleague. A banker. |
| Paolo | Veronese | A painter. |
| Francoise | Vionnet | Don Orsati's former client. The art forgerer's wife. |
| Olivia | Watson | An Art dealer. |
| Chiara | Zolli-Allon | Gabriel's wife. |
| Anna | | Gasparri's cook. |
| Carlos | | The Argentinian cowboy. |
| Chloe | | Vionnet's daughter. |
| Christopher | | Sarah's husband. |
| Clarissa | | Magdalena's personal shopper. |
| Ella | | Julian's receptionist. |
| Gasparri | | The current count. |
| Isabella | | The Swede girl who ran the equestrian center. |
| Jean-Luc | | Juliette's caretaker. |
| Margherita | | The villa's housekeeper. |
