Ethnicity: Oh was born in the Ottawa suburb of Nepean, to middle-class Korean immigrant parents, who had come to Canada in the early 1960s
Oh was born in the Ottawa suburb of Nepean, to middle-class Korean immigrant parents Oh Junsu (John) and Oh Young-nam, who had moved to Canada in the early 1960s. Her father is a businessman and her mother a biochemist. Oh has a brother, Ray, and a sister, Grace. She grew up in a Christian household, living on Camwood Crescent in Nepean, where she began acting and ballet at an early age. Growing up, Oh was one of the few youth of Asian descent in Nepean. At the age of 10, she played The Wizard of Woe in a class musical, The Canada Goose.