On the run from the police in Athens, a man named Jason has in his possession a microfilm eagerly sought by both criminal gangs and government agencies.
| Actor | Role |
|---|---|
 Ty HardinJason | Jason |
 Michael RennieMajor Worthington Clark | Major Worthington Clark |
 Paola PitagoraGreta | Greta |
 Vittorio CaprioliBilly 'Pizza' | Billy 'Pizza' |
 Gordon MitchellThe Albanian | The Albanian |
 Vassili KarisAutista del bulgaro | Autista del bulgaro |
| GGiulio ColtellacciMister Lloyd | Mister Lloyd |
 Graziella GranataRumba | Rumba |
 Ferdinando PoggiInspector Starkis | Inspector Starkis |
| HHum SilversNot listed | Not listed |
 Remo De AngelisIl bulgaro | Il bulgaro |
 Valentino MacchiNot listed | Not listed |
 Gianni Di SegniBulgarian Henchman (uncredited) | Bulgarian Henchman (uncredited) |