Johnny Donald, a cynical seducer of women, discovers he is actually the son of Don Diego Tenorio, a wealthy Mexican landowner. Accompanied by his trusty servant Morenillo, he travels south in search of vengeance and riches, but manages to deflower and make enemies all along the way until he finally meets his match in the person of a Mormon assassin and a stone statue.
| Actor | Role |
|---|---|
 John RichardsonJohn Donald Tenorio | John Donald Tenorio |
 Claudio CamasoDon Francisco Tenorio | Don Francisco Tenorio |
 Martine BeswickDona Antonia | Dona Antonia |
 Luisa Della NoceSara Donald | Sara Donald |
 Claudio GoraDon Diego Tenorio | Don Diego Tenorio |
 Furio MeniconiPapa Buck | Papa Buck |
 Gordon MitchellDanite | Danite |
 Glauco OnoratoMorenillo | Morenillo |
 Gia SandriLinda | Linda |
 Nadia ScarpittaChica | Chica |
 Patrizia ValturriEdith | Edith |
 Mirella PamphiliNot listed | Not listed |
 Margherita HorowitzOld Maid Aunt | Old Maid Aunt |
| TThelma AndersonNot listed | Not listed |
| VVittorio ManfrinoNot listed | Not listed |
| LLoredana GiustiniNot listed | Not listed |
 Piero VidaSacerdote | Sacerdote |
 Remo De AngelisNot listed | Not listed |
 Claudia GravyNot listed | Not listed |
 Román AriznavarretaHermano de Gertrode (uncredited) | Hermano de Gertrode (uncredited) |