Grey was born and raised in North Highlands, California, to a working class family. Her mother worked for the state of California and her father is a Greek American mechanic.Her parents divorced when she was 5 and subsequently she was raised by her mother, who remarried in 2000. She's stated that while her parents do not like everything she does, they get along.
Grey attended four high schools, among them Highlands High, before graduating, having been unhappy in each one, though she graduated a year early at 17.In autumn 2005, she attended junior college and took classes in film, dance, and acting.
She waited tables at a steakhouse through March 2006 and saved $7,000 for a move to Los Angeles.
