Seo Kang-joon
Lee Seung-hwan, known professionally as Seo Kang-joon, is a South Korean actor and singer who was a member of the group 5urprise. He gained recognition with his role in the television series Cheese in the Trap and has since starred in Entourage, Are You Human?, The Third Charm, Watcher, When The Weather Is Fine, and Grid.