Biographie: Seo Kang-joon (born Lee Seung-hwan on October 12, 1993) is a South Korean actor and singer who is a member of the group 5urprise. He gained recognition with his role in the television series Cheese in the Trap (2016) and has since starred in Entourage (2016), and will headline KBS2's Are You Human Too? (2017).