Harry Palmer heads a private investigation business based in Moscow. His associates are Nikolai "Nick" Petrov, ex-CIA agent Craig, and ex-KGB Colonel Gradsky. They take on the job of finding 1000 grams of weapons-grade plutonium stolen from the Russian government, though they do not know the identity of their client.
| Actor | Role |
|---|---|
 Michael CaineHarry Palmer | Harry Palmer |
 Jason ConneryNikolai Petrov | Nikolai Petrov |
 Michael GambonAlex | Alex |
 Michael SarrazinCraig | Craig |
 Lev PrygunovColonel Gradsky | Colonel Gradsky |
 Olga AnokhinaGreta | Greta |
 Anatoli DavydovYuri | Yuri |
 John Dunn-HillLouis | Louis |
 Yevgeni ZharikovFeodor | Feodor |
 Michelle BurkeBrandy | Brandy |
 Serge HoudeDr. Vestry | Dr. Vestry |
 Ingolf GorgesClub Manager | Club Manager |
| AAnatoly SlivnikovAlex's Thug #2 | Alex's Thug #2 |
| YYuri PetrovGeneral Kornikov | General Kornikov |
| TTanya JacksonTatiana | Tatiana |
| YYuri LimontyCircus Clown | Circus Clown |
| MMichael SchererMafiosa | Mafiosa |
 Gabriel VorobyovDriver | Driver |
 Aleksandr ZavyalovAlex's Thug #1 | Alex's Thug #1 |
 Vlasta VranaNot listed | Not listed |
| VVera BykovaMaria | Maria |
 Vladimir EryominBoris | Boris |
 Konstantin AnisimovNot listed | Not listed |
| SSergey GolovkinNot listed | Not listed |