While Lee Min Ho and Kim Go Eun's chemistry in the spotlight of The King: Eternal Monarch, fans are enjoying Woo Do Hwan's bond with Min Ho and Go Eun off-screen as well. The actor plays dual roles in the show. In the Republic of Korea, the actor essays the role of Jo Eun-Sup, a happy-go-lucky public worker, who shares a little brother like relationship with Go Eun's Jung Tae Eul. Whereas in the Kingdom of Corea, the actor plays the chief royal guard Jo Yeong who protects Min Ho's Lee Gon.