Main •
Alessandro Borghi as Aureliano Adami, an
Ostia-based gang member. Gabriele Rizzoli portrays young Aureliano in season two. •
Giacomo Ferrara as Alberto "Spadino" Anacleti, a
Sinti gang member and
closeted homosexual. Nicholas Salvatori portrays young Alberto in seasons two and three. •
Eduardo Valdarnini as Gabriele "Lele" Marchilli (seasons 1–2), the only son of a policeman who becomes involved in crime due to a debt with Samurai; he later joins the police-force himself. Lorenzo Ciamei portrays young Gabriele in season two. •
Francesco Acquaroli as "Samurai", the head of organized crime in Rome and contact for the
Sicilian Mafia; he is also a former
militant neo-fascist terrorist. His real name is Valerio. Rocco Angelucci portrays young Valerio in season three. •
Filippo Nigro as Amedeo Cinaglia, a
progressive politician approached by Samurai. Alessandro Sposi portrays young Amedeo in season three. •
Claudia Gerini as Sara Monaschi, a financial auditor working for the
Roman Curia •
Adamo Dionisi as Manfredi Anacleti, a Sinti crime gang leader and Spadino's older brother. Antonio Orlando portrays young Manfredi in season three. • Barbara Chichiarelli as Livia Adami (seasons 1–2), Aureliano's sister • Federico Tocci as Tullio Adami (season 1, guest season 2), Aureliano's father •
Gerasimos Skiadaresis as Monsignor Theodosiou (season 1), a pious yet sinful
monsignor • Elisabetta De Palo as Countess Sveva della Rocca Croce (seasons 1–2), a powerful aristocrat •
Carlotta Antonelli as Angelica Sale, Spadino's wife • Renato Marchetti as Franco Marchilli (seasons 1–2), a policeman and Lele's father • Paola Sotgiu as Adelaide Anacleti, Manfredi and Spadino's mother •
Augusto Zucchi as Cardinal Cosimo Giunti (seasons 1–2), a member of the Vatican commission • Stefano Santospago as Sandro Monaschi (seasons 1–2), Sara's husband • Lucia Mascino as Gabriella (seasons 1–2), a member of parliament and Amedeo's ex-wife • Lorena Cesarini as Isabelle Mbamba (season 1), a prostitute and Aureliano's love interest • Diego Ribon as Stefano Forsini (seasons 1–2), a member of parliament and Gabriella's new husband • Pietro Ragusa as Gianni Taccon (season 1), a new member of Amedeo's municipal commission • Jacopo Venturiero as Adriano Latelli (seasons 2–3), a clandestine neo-fascist radio host •
Rosa Diletta Rossi as Alice (seasons 2–3, recurring season 1), Amedeo's second wife • Federica Sabatini as Nadia Gravoni (seasons 2–3), the daughter of a small boss of Ostia who establishes a personal and business relationship with Aureliano • Cristina Pelliccia as Cristiana Massoli (season 2), a policewoman and Lele's colleague • Alessandro Bernardini as Saverio "Boiardo" Guerri (seasons 2–3, recurring season 1), Samurai's right-hand man • Stefano Fabrizi as Romolo Lucci (season 2, recurring season 1), a soldier of the Adamis • Alessandro Proietti as Alex (seasons 2–3), Spadino's cousin, loyal to Adelaide • Alberto Cracco as Cardinal Fiorenzo Nascari (seasons 2–3) • Fiorenza Tessari as Mara Guagli (season 2, recurring season 1), a policewoman and Lele's father's love interest • Antonio Bannò as Flavio Lucci (season 3, recurring season 2), Romolo's son •
Marzia Ubaldi as Sibilla Mancini (season 3) • Emmanuele Aita as Ferdinando Badali (season 3, recurring seasons 1–2), a member of the Sicilian Mafia • Alessandra Roca as Laura, Manfredi's lawyer (season 3) • Claudio Vanni as Titto Zaccardelli, a drug dealer from North Rome (season 3)
Recurring •
Pietro Biondi as Cardinal Pascagni, Sara's ally in the Vatican (recurring season 1, guest season 2) • Alessio De Persio as Vincenzo Sale, a Sinti boss and Angelica's father • Daniele Amendola as Aldo (season 1), one of Manfredi's soldiers • Maurizio Bianucci as Aristide Gramini (season 1), a municipal councillor • Andrea Cavatorta as Serri (season 1), a municipal councillor • Paolo Gattini as Gianni (season 1) • Daniele Locci as Boris (season 1), Manfredi and Alberto's cousin •
Alessandro Rossi as Giacomo Finucci (season 1), a corrupt member of Amedeo's municipal commission • Mario Sgueglia as Ezio Quirino (season 1), an accountant to the Adami family and Livia's love interest • Aleph Viola as Teo (season 2), Spadino's secret lover • Gianluca Gobbi as Enrico Barsacci, a right-wing politician (season 2) • Davide Argenti as Leo, Spadino and Alex's cousin (season 3) • Sofia Ciraolo as Vittoria Cinaglia, Amedeo and Alice's daughter (season 3) • Filippo Franzè as Fabrizio Cinaglia, Amedeo and Alice's son (season 3) • Michael Moses Dodi as Vincent, a priest, Cardinal Nascari's assistant and secret son (season 3) • Giovanni Federico as Don Badali, a boss of the Sicilian Mafia and Ferdinando's father (recurring season 3, guest season 2) == Episodes ==