Seo Hyun-woo is a South Korean actor who began his career on stage and made his debut in a musical in 2010. In the same year, he won an acting award at The 9th Off Daehakro Festival. Seo faced a period of obscurity that lasted for five years following his graduation. Seo naturally turned his attention to Daehakro plays and independent films. He starred as the main lead in Hyung Seul-woo's film Allergy that received the grand prize at the Fukuoka Independent Film Festival.