Boy, the 4 examples only represent a small sampling.  Given that you go from fair skin to very dark, features which are very European to Native Indian mix, and dark to very blonde hair.  Let's see:
Rosie Perez - Puerto Rican
Jennifer Lopez - Puerto Rican
Penelope Cruz - Spanish (from Spain)
Angie Palmero Lopez - Cuban

3 of Caribbean descent, 1 from the Homeland.  I guess that narrows down the field.