Tres chicas norteamericanas, afincadas en Madrid, vivirán apasionados romances.
 | Ann-Margret | Fran Hobson |
| Anthony Franciosa | Emilio Lacayo |
| Carol Lynley | Maggie Williams |
| Gardner McKay | Pete McCoy |
| Pamela Tiffin | Susie Higgins |
| André Lawrence | Dr. Andrés Briones |
| Gene Tierney | Jane Barton |
| Brian Keith | Paul Barton |
| Vito Scotti | Vecino |
| Isobel Elsom | Doña Teresa Lacayo |
| Maurice Marsac | José |
| Shelby Grant | Marian |
| Antonio Gades | Bailaor de Flamenco |
