 Franco NeroCommissario Belli | Commissario Belli |
 James WhitmoreCommissioner Aldo Scavino | Commissioner Aldo Scavino |
 Fernando ReyCafiero | Cafiero |
 Stefania Girolami GoodwinAnita | Anita |
 Duilio Del PreteUmberto Griva | Umberto Griva |
 Silvano TranquilliFranco Griva | Franco Griva |
 Ely GalleaniChicca | Chicca |
 Daniel MartínRico | Rico |
 Delia BoccardoMirella | Mirella |
| PPaul CostelloCammarano | Cammarano |
 Luigi DibertiBelli's Assistant | Belli's Assistant |
 Mario ErpichiniRivalta | Rivalta |
 Zoe IncrocciScavino's Wife | Scavino's Wife |
 Bruno CorazzariScavino's Assassin | Scavino's Assassin |
 Massimo VanniKiller | Killer |
 Víctor IsraelScorfano | Scorfano |
| JJoaquín SolísTony, Cafiero's Servant | Tony, Cafiero's Servant |
 Edy BiagettiGriva Associate | Griva Associate |
 Paolo GiustiMan at Chicca's House | Man at Chicca's House |
 Enzo G. CastellariReporter | Reporter |
 Mickey KnoxNewsman at Party | Newsman at Party |
 Walter PatriarcaKiller with Sunglasses (uncredited) | Killer with Sunglasses (uncredited) |
 Nello PazzafiniHitman (uncredited) | Hitman (uncredited) |
 Giovanni CianfrigliaHitman (uncredited) | Hitman (uncredited) |
 Riccardo PetrazziHitman (uncredited) | Hitman (uncredited) |
 Benito PacificoCafiero Henchman (uncredited) | Cafiero Henchman (uncredited) |
 Leonardo ScavinoCoroner (uncredited) | Coroner (uncredited) |
 Natasha RichardsonGirl Playing Hopscotch (uncredited) | Girl Playing Hopscotch (uncredited) |
| SSergio SoldanoExtra (uncredited) | Extra (uncredited) |
 Lorenzo PianiDock Worker (uncredited) | Dock Worker (uncredited) |
