I don't think anybody really looks like her. She also looks like the epitome of a princess to me. If I were a young girl thinking of who might play a princess the best, I'd pick Olivia Hussey. She has the beauty, the mystery, the undescribable something that sets her apart from the rest of her age group (I'm thinking of her as the fifteen year old who landed the part for Juliet.) She reached a level of perfection in that film, (thanks to Zeffirelli), of spontaneity, ingenuousness, that has remained unmatched. The only young woman who might have competed with her is for the same type of role is Audrey Hepburn (but they are not the same generation). Audrey Hepburn also "had it" in War and Peace, and My Fair Lady. Still, it's a different style, Olivia never looked that sophisticated, just a creature all her own, with all the refinement and passion combined, but somehow untouched by rules and conventions. Thanks for all of you who are posting pictures. I wish I could contribute pictures too !
She has a modern face yet could be an iconic actress of the thirties and forties. Such glamour and drama in her face and posture ! What a pity her career was so limited after the first brush with success in her teens.