Park has both surviving parents and at least two brothers. Her father left when she was in fourth grade. When she was thirteen years old, she experienced at least one earthquake. In this incident, she cut both her feet from broken glass, and has never liked experiencing earthquakes since that time. At some point in her life, she had a boyfriend, Gary, while she was working in the Stargate program. Though the relationship had difficulties, she believed that they had set aside their differences and their relationship was going well. She is also a vegetarian. (SGU: "Darkness", "The Hunt") (Kino: "Painful Moments", "Not Just For Posterity")