Guest Stars Nam Joo Hyuk as Wang Wook / Baek Ah Ji Soo as Wang Jung Yoon Sun Woo as Wang Won Kim Sung Kyun as Choi Ji Mong Park Ji Young as Queen Shinmyung Soonsung Byun Baek Hyun as Wang Eun Kim San Ho as Wang Mu Jin Ki Joo as Chae Ryung Seohyun as Woo Hee Z.Hera as Park Soon Duk Lee Chae Mi as Princess Gyeonghwagung