Alexopoulos was born in Chicago to Greek parents,[2][3] and was raised in Oak Park, Illinois.
[3] In 1975, a teenage Alexopoulos was chosen by George Balanchine to perform the role of a child with the New York City Ballet.
[9] Ballets she was known for include Balanchine's Prodigal Son, Vienna Waltzes, "Emerald" in Jewels, Episodes, Monumentum pro Gesualdo, Movements for Piano and Orchestra, Divertimento No.
15, Variations pour une Porte et un Soupir and The Nutcracker, as well as Robbins' I'm Old Fashioned, Antique Epigraphs and West Side Story Suite, and sang on stage for the latter.
[7] Alexopoulos was accepted by Harvard University on a scholarship, but she decided to pursue a career in ballet, despite her family's disapproval.