Seo Dong Jin is a South Korean musical actor. He graduated with a bachelor's degree in Theater and Film from Hanyang University. He made his debut in 2011 with a role in the musical "Oh! While You Sleep" and has been a steady presence in the musical and theater world since then. He has also ventured into acting with guest roles in "About Time" and "The King of Tears, Lee Bang Won". (Source: Korean = Namu Wiki || Translation = MyDramaList)