Nino Manfredi as commissario Quintilio Tartamella

Philippe Leroy as Giorgio Santi

Virna Lisi as Silvia Santi

Mario Feliciani as Teo Teopoulos

Irene Papas as Elena Teopoulos

Evi Maltagliati as madre di Elena

Umberto Orsini as Rubio Marescalli

Senta Berger as Dedé Marescalli

Franco Fabrizi as Nino Rappi

Michèle Mercier as Wilma Rappi

Vittorio Caprioli as Il barone Maurizio Di Vittis

Gastone Moschin as il monsignore

Vittorio Sanipoli as il questore

Carlo Hintermann as un avvocato di Elena

Enzo Tarascio as un avvocato di Elena

Nora Ricci as donna Serena

Annabella Incontrera as la lesbica

Enzo Cannavale as agente Tognon

Peter Baldwin as Michele Vismara

George Wang as Che-Fang

Gigi Ballista as Vitozzi

Giancarlo Badessi as Rossi

Gigi Rizzi as un playboy

Minnie Minoprio as Minnie

Dado Crostarosa as Lando Santi

Luigi Leoni as un amante di Dedé

Pupo De Luca as un amante di Dedé

Margaret Rose Keil as Suzy

Pia Giancaro as l'invitata in nude-look

Carla Mancini as

Ely Galleani as Vivi Santi

Umberto Di Grazia as