María de Lourdes Villiers Farrow (born February 9, 1945), known professionally as Mia Farrow, is an American actress, activist and former fashion model.She first gained notice for her role as Allison MacKenzie in the television soap opera Peyton Place and gained further recognition for her subsequent short-lived marriage to Frank Sinatra. An early film role, as Rosemary in Roman Polanski's Rosemary's Baby (1968), saw her nominated for a BAFTA and a Golden Globe for Best Actress.