Sebastian Stan was born on August 13, 1982 in Constanța, Romania. He has stated that his parents divorced when he was two years old. At the age of eight, Stan and his mother, Georgeta Orlovschi, moved to Vienna, Austria, following the Romanian Revolution, where Georgeta was employed as a pianist. Four years later, they moved to Rockland County, New York, after his mother married Anthony Fruhauf, the headmaster of Rockland Country Day School, where Stan was educated. During Stan's years at the Rockland school, he starred in productions including Harvey, Cyrano de Bergerac, Little Shop of Horrors, Over Here!, and West Side Story. He also attended the Stagedoor Manor summer camp where he was cast in many camp productions. It was then that he decided to take acting seriously and began to apply for acting programs at several universities. He was accepted to and attended Rutgers University's Mason Gross School of the Arts, which also gave him the opportunity to spend a year abroad studying acting at Shakespeare's Globe Theatre in London, England. Stan became a United States citizen in 2002.

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