USA
Colini, an exiled American gangster living in Sicily, rescues Giordano, a young Sicilian outlaw, from the police. After Giordano is groomed, polished, and renamed "Johnny Cool," Colini sends him on a vengeance mission to the United States to assassinate the men who plotted his downfall and enforced exile. Johnny arrives in New York and quickly kills several of the underworld figures on Colini's list. Meanwhile, he picks up Dare Guiness, a wealthy divorcée who becomes his accomplice, and she is severely beaten by the gangsters as a warning against the vendetta. - IMDb
| I aftokratoria tou eglimatos (transliterated title) |  Greece |
| Johnny Coll, messaggero di morte |  Italy |
| Johnny Cool |  South Africa |
| Johnny Cool |  Australia |
| Johnny Cool |  Belgium |
| Johnny Cool | Belgium |
| Johnny Cool | Belgium |
| Johnny Cool |  Canada |
| Johnny Cool |  United Kingdom |
| Johnny Cool |  Romania |
| Johnny Cool | USA |
| Johnny Cool - hævneren fra underverdenen |  Denmark |
| Johnny Cool, alamaailman kuningas (informal title) |  Finland |
| Johnny Cool, messaggero di morte (reissue title) | Italy |
| Johnny Cool: Mensajero de venganza |  Peru |
| Johnny, el frío |  Spain |
| The Kingdom of Johnny Cool | USA |
| The Kingdom of Johnny Kool | USA |
| A Mafia Manda Matar |  Portugal |
| Mensajero de venganza |  Argentina |
| Mensajero de venganza |  Mexico |
| O Mensageiro da Vingança |  Brazil |
| Die Rache des Johnny Cool |  West Germany |
| La revanche du Sicilien (subtitle) | Belgium |
| La revanche du Sicilien | Canada |
| La revanche du Sicilien |  France |
| De Weerwraak van de Siciliaan (subtitle) | Belgium |
| Η αυτοκρατορία του εγκλήματος | Greece |
| Джонни Кул |  Soviet Union |
| ひとりぼっちのギャング |  Japan |
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Pat Rosson [11] | Older Boy |
