USA
Horace Vendig shows himself to the world as a rich philanthropist. In fact, the history of his rise from his unhappy broken home shows this to be far from the case. After being taken in by richer neighbours he started to exhibit an obsessive and selfish urge to make more and more money, loving and leaving women at will to further this end. - IMDb
| Ambição |  Portugal |
| Il dominatore di Wall Street |  Italy |
| Gewetenloos (literal title) |  Netherlands |
| Häikäilemätön |  Finland |
| L'impitoyable |  France |
| El Insaciable |  Mexico |
| Necruţător |  Romania |
| O Insaciável |  Brazil |
| Ohne Erbarmen |  Austria |
| Ohne Erbarmen |  West Germany |
| Prelude to Night | USA |
| Rovriddaren |  Sweden |
| Ruthless |  Australia |
| Ruthless |  Canada |
| Ruthless | Canada |
| Ruthless |  Ecuador |
| Ruthless |  United Kingdom |
| Ruthless | USA |
| Skrupellos | West Germany |
| Syntrimmia tou parelthontos (transliterated title) |  Greece |
| Traición |  Spain |
| Συντρίμμια του παρελθόντος | Greece |
| Безжалостный |  Soviet Union |
 |
Ann Carter [11] | Martha Burnside as Child |
 |
George McDonald | Freddie Atwood, Piano Student |
 |
Robert J. Anderson [15] | Horace Vendig as Child |
