Sooha Kim is a South Korean musical-theatre actor who made her professional debut in the 2015 West End production of Miss Saigon at the Prince Edward Theatre. She joined the company as an ensemble member and cover for Kim and performed the leading role during the production’s run. She subsequently played Kim in the Japanese production, the 2017–18 UK and Ireland tour, and the 2018–19 international tour. Kim made her Korean stage debut in SwagAge: Shout Out, Joseon! in 2019 and later established herself in leading roles including Eurydice in Hadestown, Aida in Aida, and Éponine in Les Misérables. Her career traces a progression from ensemble and cover work in the West End, including performances as Kim, to principal international casting and a leading career in the Korean musical industry.