Luca Benvenuto / Commissario Luca Benvenuto (184 episodes, 2000-2010)
Sovrintendente Giuseppe Ingargiola / Giuseppe Ingargiola (181 episodes, 2000-2010)
Sovrintendentecapo Antonio Parmesan / Antonio Parmesan (180 episodes, 2000-2008)
(157 episodes, 2005-2010)
Ispettore capo Mauro Belli / Mauro Belli (136 episodes, 2000-2006)
Roberto Ardenzi (112 episodes, 2000-2007)
Commissario Giulia Corsi / Commissario Capo Giulia Corsi / Giulia Corsi (80 episodes, 2002-2010)
Vittoria Guerra / vice sovrintendente di Polizia Vittoria Guerra (73 episodes, 2000-2010)
Ugo Lombardi (71 episodes, 2000-2008)
Miriam (52 episodes, 2008-2009)
Antonella Gullo (52 episodes, 2008-2009)
Ispettore Antonio Sperelli (52 episodes, 2010-2012)
Giovanni Brenta (52 episodes, 2010-2012)
Ispettore Walter Manrico / Walter Manrico (49 episodes, 2000-2008)
Giovanna Scalise (47 episodes, 2000-2005)
Gabriele Mancini (46 episodes, 2009-2010)
Ispettore Paolo Libero (42 episodes, 2002-2005)
Alessandro Berti (38 episodes, 2006-2008)
Tiberio Belli (35 episodes, 2000-2007)
Antonio Corallo (27 episodes, 2001-2012)
Davide Rea (26 episodes, 2005)
Angela Rivalta (26 episodes, 2000-2001)
Sostituto Procuratore DiFrancesco (26 episodes, 2000-2002)
Corradi (26 episodes, 2007)
Dorian Lazslo (26 episodes, 2009)
Avvocato Balsamo (26 episodes, 2010)
Mara Fermi (26 episodes, 2011-2012)
Valentina Bini (26 episodes, 2011-2012)
Agente Marta Balestra (26 episodes, 2011-2012)
Nina Moretti (25 episodes, 2000)
Caterina Scalise (25 episodes, 2000-2001)
Paula Cardozo (25 episodes, 2000-2001)
Livia Scalise (25 episodes, 2000-2001)
Federico Scalise (25 episodes, 2000-2001)
(24 episodes, 2000)
Arturo Stasi (24 episodes, 2000)
Mario (24 episodes, 2001)
Giulio Flaviano (23 episodes, 2008)
Sofia Ingargiola (18 episodes, 2009)
Ispettore Raffaele Marchetti / Ispettore Marchetti / Raffaele Marchetti / ispettore di Polizia Raffaele Marchetti (14 episodes, 2007-2008)
Anna Gori / Sovrintendente Anna Gori / agente di Polizia Anna Gori (12 episodes, 2005-2009)
Vito Tonnara (11 episodes, 2001)
Commissario Marcello Fontana / Marcello Fontana / commissario di Polizia Marcello Fontana (11 episodes, 2007)
Ruggero Carrano (11 episodes, 2006)
Francesca Volta (10 episodes, 2002-2006)
Germana Belli (8 episodes, 2002-2007)
Marco Gallo (8 episodes, 2005-2012)
Irene Valli / Ispettore Irene Valli / vice ispettore di Polizia Irene Valli (7 episodes, 2006-2008)
Sabina Corsi (6 episodes, 2002-2005)
Marco Altieri (6 episodes, 2002-2005)
Policewoman (6 episodes, 2012)
Medico Legale (5 episodes, 2005)
Ispettore Elena Argenti / Elena Argenti (5 episodes, 2007-2009)
Fernando Monti (4 episodes, 2001-2002)
Vicequestore Severini (4 episodes, 2002)
Daniele Montanari (4 episodes, 2011)
Angelo Roberti (4 episodes, 2012)
(3 episodes, 2005)
Luigi (3 episodes, 2001)
Daniele Fanelli (3 episodes, 2002-2005)
(3 episodes, 2003-2011)
Commissario Evangelisti / Dottor Franchi (3 episodes, 2003-2009)
Giuliani / Stunt (3 episodes, 2005-2010)
Stefano (3 episodes, 2006-2007)
Cristian (3 episodes, 2006)
Ispettore (3 episodes, 2007-2010)
Artificiere della polizia Lince / Flavio De Mola / Raimondo Nesi (3 episodes, 2007-2010)
Boss vincenzo neri (3 episodes, 2007)
Andra (3 episodes, 2011)
(3 episodes, 2011)
Valeria Ruggero (2 episodes, 2001-2002)
Irene Martini (2 episodes, 2001-2002)
Andrea Muralti / Fabio (2 episodes, 2000-2002)
Gaetano Nazzari / Ruben Castiglia (2 episodes, 2005-2007)
Girl (2 episodes, 2001-2002)
(2 episodes, 2005)
Carlo Ratti / Crociani (2 episodes, 2000-2007)
Luigi Falliero (2 episodes, 2000)
Letizia (2 episodes, 2000)
Abductor Giorgio Brioschi / Radio DJ Max Gilera (2 episodes, 2000)
Marisa Spanu (2 episodes, 2000)
Andrea Manzi (2 episodes, 2000)
Prot di puntata (2 episodes, 2001-2005)
Darko / Vittima di truffa polacco (2 episodes, 2005-2007)
Elisa (2 episodes, 2005)
Albergatore / Bruno Casiraghi (2 episodes, 2006-2008)
Mario Ferri (Travestito) (2 episodes, 2006)
Jonathan Sidoti / Remo cerrone (2 episodes, 2007-2011)
Alberto Tebaldi / Allenatore Ferroni (2 episodes, 2007-2008)
Walter Martino (2 episodes, 2007)
Federico Bergamini (2 episodes, 2008)
Carolina Ferretti (2 episodes, 2009-2011)
Salvati / Stefano (2 episodes, 2009-2011)
Michele Dardini / Prete (2 episodes, 2009-2010)
Pope (2 episodes, 2009)
(2 episodes, 2009)
Vico, il serbo / Volontario casa famiglia (2 episodes, 2010-2011)
Agente P.S. Ferrari / Proprietario del bar (2 episodes, 2010-2011)
Rocco Liverani (2 episodes, 2011)
Rita (2 episodes, 2011)
Blaster (2 episodes, 2012)
Prostitute (1 episode, 2010)
Alessandro Bonacci (1 episode, 2005)
Carla Monti (1 episode, 2002)
(1 episode, 2005)
Ferdinando (1 episode, 2000)
(1 episode, 2000)
Fabio (1 episode, 2000)
Bit Part (1 episode, 2000)
Sinisa Davric (1 episode, 2000)
Giulia (1 episode, 2000)
Longoni (1 episode, 2000)
Prima cassiera (1 episode, 2000)
Alfonso Perelli (1 episode, 2000)
Alfredo Verrecchia (1 episode, 2000)
Matteo (1 episode, 2000)
Swindled Woman (1 episode, 2000)
Lucia (1 episode, 2000)
Capo Usurai (1 episode, 2000)
Gargiulo Gennaro (1 episode, 2000)
Ludovica (1 episode, 2000)
Antonino 'Roscio' Michelini (1 episode, 2000)
Isabella (1 episode, 2001)
(1 episode, 2001)
Mago (1 episode, 2001)
Fattorino (1 episode, 2001)
Anita (1 episode, 2002)
Giovanni (1 episode, 2002)
Proprietario Dell'officina (1 episode, 2002)
(1 episode, 2002)
Studentessa liceo classe Sabina (1 episode, 2002)
Angela (1 episode, 2002)
Rapinatore di Banca (1 episode, 2002)
Marzia (1 episode, 2003)
Sergio Moresco (1 episode, 2003)
Amelia (1 episode, 2003)
(1 episode, 2003)
Gioielliera (1 episode, 2003)
Minister (1 episode, 2003)
Gestore Internet (1 episode, 2003)
Spacciatore (1 episode, 2003)
Il biondino (1 episode, 2005)
Carlo Rondelli (1 episode, 2005)
Ivano Frattini (1 episode, 2005)
Alberto Campi (1 episode, 2005)
Episode guest (1 episode, 2005)
Ricci (1 episode, 2005)
Martino Benzi (1 episode, 2006)
Renato Aletti (1 episode, 2006)
Guest star / Simona (1 episode, 2006)
Avvocato Grimaldi (1 episode, 2006)
Nicoletta (1 episode, 2006)
(1 episode, 2006)
Vanessa (1 episode, 2006)
Cesare Carrano (1 episode, 2006)
Silvia (1 episode, 2006)
Leandro Sertori (1 episode, 2006)
Dario Pellegrini (1 episode, 2006)
Marzio Benedetti (1 episode, 2006)
Giorgio (1 episode, 2006)
PM Forti (1 episode, 2006)
Felipe (1 episode, 2006)
(1 episode, 2007)
Valeria Valli (1 episode, 2007)
Sonia (1 episode, 2007)
Cristina Fontana (1 episode, 2007)
Piergiorgio Malaspina (1 episode, 2007)
Ernesto Guarini (1 episode, 2007)
Actress (1 episode, 2007)
Franco Binetti (1 episode, 2007)
Italo Caminiti (1 episode, 2007)
Marinella Regini (1 episode, 2007)
Matteo Fontana (1 episode, 2007)
(1 episode, 2008)
Roberta (1 episode, 2008)
Ludovica Barbieri (1 episode, 2008)
Maddalena (1 episode, 2008)
Gaetano Bardoni (1 episode, 2008)
Maurizio Bossa (1 episode, 2008)
(1 episode, 2009)
Clara (1 episode, 2009)
Emma (1 episode, 2009)
Belinda (1 episode, 2009)
Arturo Giacobelli (1 episode, 2009)
Giovanni Corsi (1 episode, 2009)
Lorenzo (1 episode, 2009)
Barbara (1 episode, 2009)
Anna (1 episode, 2009)
Laura Orsini (1 episode, 2009)
Postman (1 episode, 2010)
Grazia Ricciardelli (1 episode, 2010)
Kate Bradford (1 episode, 2010)
Sergio Biondi (1 episode, 2010)
(1 episode, 2010)
Piumino (1 episode, 2011)
(1 episode, 2011)
Asia Pinelli (1 episode, 2011)
Lavinia (1 episode, 2011)
Facci Ernesto (1 episode, 2011)
Renato Spadoni (1 episode, 2011)
Bulletto (1 episode, 2011)
Gambler (1 episode, 2011)
Antonio (1 episode, 2012)
Architetto Armando Somaini (1 episode, 2012)
Pilota auto (1 episode, 2018)
William Prokas (unknown episodes)
Luigi Greco (unknown episodes)
Prof. De Santis (unknown episodes)
Diana Rinaldi (unknown episodes)
Tommaso Lodoli (unknown episodes)
(unknown episodes)
Posini (unknown episodes)
Vicequestore Roveda (unknown episodes)
Laura, la ragazza di Saro (unknown episodes)
Rosario 'Saro' Giuncardi (unknown episodes)
Hostage girl (unknown episodes)
Corrado Esposito (unknown episodes)
Ira Droskovicic (unknown episodes)
Andrea Moretti (unknown episodes)
Sargente Rosi (uncredited) (1 episode, 2001)
italiana Finance Guard's (uncredited) (unknown episodes)