Undercover cop Fabio Testi infiltrates the world of motocross racing.
| Actor | Role |
|---|---|
 Fabio TestiPaolo | Paolo |
 Vittorio MezzogiornoNicola | Nicola |
 Daniela PoggiInge | Inge |
 Jacques HerlinFischer | Fischer |
 Romano PuppoKurt Schmidbauer | Kurt Schmidbauer |
 Marilda DonàNot listed | Not listed |
 Franco OdoardiMüller | Müller |
 José Luis de VilallongaMeyer | Meyer |
 Lia TanziResi | Resi |
 Marco BonettiNot listed | Not listed |
 Guerrino CrivelloNot listed | Not listed |
| SSasha D'ArcNot listed | Not listed |
 Massimo GhiniNot listed | Not listed |
| GGianni GoriNot listed | Not listed |
| GGianfranco CiabattiNot listed | Not listed |
 Andrea AureliDoctor (uncredited) | Doctor (uncredited) |
 Omero CapannaMan falling downstairs (uncredited) | Man falling downstairs (uncredited) |
 Riccardo PetrazziThug (uncredited) | Thug (uncredited) |
 Ettore MartiniGuest at Meyer's House (uncredited) | Guest at Meyer's House (uncredited) |