| | | | Part 1 |
| 1 | Julian | Isherwood | Owner of Isherwood Fine Arts. Gabriel's art restorer. |
| | Sarah | Bancroft | Isherwood's partner. |
| | Valerie | Berrangar | The woman Julian is supposed to meet. |
| | Anthony | Van Dyck | The painter of "Portrait of an Unknown Woman". |
| | Ronald | Sumner-Lloyd | Julian's attorney. |
| | Ella | | Julian's receptionist. |
| | Oliver | Dimbleby | A London Art dealer. |
| | Roddy | Hutchinson | A London Art dealer. |
| | Samuel | Isakowitz | An Art dealer. Julian's father. |
| 2 | Francesco | Tiepolo | Owner of a restoration
company. |
| | Gabiel | Allon | Protagonist. |
| | Chiara | Zolli-Allon | Gabriel's wife. |
| | Uzi | Navot | A director of the officer. |
| | Mikhail | Abramov | One of Gabriel's colleagues. |
| | Natalie | Mizrahi | Mikhail's wife. |
| | Eli | Lavon | A surveillance artist for Israeli Foreign Intelligence. |
| | Dina | Sarid | Archivist of Palestinian and Islamic Terrorism. |
| | Yossi | Gavish | One of Gabriel's senior staff. |
| | Yaakov | Roosman | One of Gabriel's senior staff. |
| | Rimona | Stern | Gabriel's chief of collections. |
| | Irene | Allon | Gabriel and Chiara's daughter. |
| | Raphael | Allon | Gabriel and Chiara's son. |
| | Bernardo | Canal | The father of Canaletto. |
| 4 | Georges | Fleury | A French Artist who specialized in 17th and 18th centuries. |
| | Cesare | Ferrari | Commander of Art Squad. |
| | Phillip | Somerset | An Art Investor. The man who bought the portrait of an unknown woman. |
| 5 | Luca | Rosetti | The man from Art Squad. A spy. Aka: Alessandro Calvi, Giovanni Rinaldi. |
| | Anna | Rolfe | Gabriel's friend. |
| 7 | Juliette | Lagarde | Valerie's daughter. |
| 9 | Mrs. | Antonelli | Irene and Raphael's socialist teacher. |
| | Jacques | Menard | Ferrari's French counterpart. |
| 10 | Jean-Luc | | Juliette's caretaker. |
| 12 | Louise | Beroud | A painter. |
| | Maximilien Alphonse | Paupardin | The Salon Carre guard. |
| | Pablo | Picasso | A Spanish painter. |
| | Guillaume | Apollinaire | A poet and writer. Pablo's friend. |
| | Vincenzio | Peruggia | The Italian carpenter who helped build Mona Lisa's protective case. |
| | Maurice | Durand | The professional art thief. |
| | General | Cyclops | Durand's friend. |
| 13 | Pierre-Henri | De Valenciennes | One of the most important landscape artists. |
| | Mr. | Didier | A collector of considerable expertise. Durand's client. |
| | Rene | Monjean | Durand's friend. |
| | Francois | Gerard | A painter. |
| 14 | Yuval | Gershon | The director-general of Unit8200. |
| | Augustus | Rolfe | A Swiss banker. Anna's father. |
| 16 | Bruno | Gilbert | Fleury's receptionist. |
| 18 | Jeremy | Crabbe | The head of Old Master Department of Bonhams. |
| | Amelia | March | A reporter at ART news. |
| | Christopher | | Sarah's husband. |
| | Aelbert | Cuyp | A Dutch golden age painter. |
| | Simon | Mendelhall | The chief auctioneer at Christie's. |
| | Nicky | Lovegrove | An art advisor. |
| 19 | Aiden | Gallagher | The founder of Equus Analytics. |
| 22 | Lindsay | Morgan-Somerset | Phillip's wife. |
| | Carl | Bernstein | Bob Woodward's partner at Washington Post. |
| | | | Part 2 |
| 29 | Christopher | Keller | Gabriel's companion. A contract killer. Aka: Benjamin Reckless. |
| | Anton | Orsati | Patriarch of one of the island's most
notorious families. |
| 31 | Edmond | Toussaint | A gallery owner and art
forger. Lucien's former boss. |
| 32 | Francoise | Vionnet | Don Orsati's former client. The art
forgoer's wife. |
| | Miranda | Alvarez | The front woman in a rival forgery. |
| | Lucien | Marchand | Vionnet's husband. An Art
forger. |
| 33 | Chloe | | Vionnet's daughter. |
| 36 | Peter | Marlowe | Sarah's husband. |
| | Olivia | Watson | An Art dealer. |
| | Penelope | Cruz | Oliver's mistress. |
| 37 | Umberto | Conti | The greatest art restorer. |
| | Paolo | Veronese | A painter. |
| | Antonio | Caliari | Paolo's father. |
| 38 | Niles | Dunham | An Old Master specialist from the national gallery. |
| 39 | Cordelia | Blake | Oliver's long-time receptionist. |
| | Magdalena | Navarro | The Spanish Art
forgoer. |
| 42 | Arma | Del Carabinieri | Rosetti's employer. |
| 43 | Gasparri | | The current count. |
| | Anna | | Gasparri's cook. |
| | Margherita | | The villa's housekeeper. |
| | Isabella | | The Swede girl who ran the equestrian center. |
| | Carlos | | The Argentinean cowboy. |
| | | | Part 3 |
| 47 | Hector | Martinez | Magdalena's lover and dealer. |
| | Clarissa | | Magdalena's personal shopper. |
| 50 | Viktor | Frankel | Gabriel's grandfather. |
| 51 | Kenny | Vaughan | Phillip's colleague. A banker. |
| 53 | Evelyn | Buchanan | An award-winning reporter. |
| 54 | Tom | Buchanan | Evelyn's husband. |
| | Leonard | Silk | A retired CIA. Phillip's private detective. |
| 57 | Sterling | Dunbar | A wealthy real estate broker. |
| | Max Van | Egan | A reactionary industrialist. |
| | Simon | Levinson | An Art dealer. |
| | Ainsley | Cabot | An Art collector. |
| | Tyle | Briggs | Phillip's head of security. |
| | Soledad | Ramirez | Phillip's housekeeper. |
| | Gustavo | Ramirez | Soledad's husband. |
| 58 | Warren | Ridgefield | One of Phillip's investors. |
| 59 | Ellis | Gray | Head of Art-based lending at JP Morgan. |
| 62 | Martin | Roth | Silk's old friend. Aka: Marty. |
| | Ray | Bennett | The Pierre Hotel's head of security. |
