What is the premier date of this South Korean television drama airing every Wednesday and Thursday, in which Jung Hae-in appears?
Jung Hae-in Jung Hae-In (born April 1, 1988) is a South Korean actor. He is currently appearing in the SBS's television series "While You Were Sleeping".
The Emperor: Owner of the Mask The Emperor: Owner of the Mask () is a South Korean television series starring Yoo Seung-ho, Kim So-hyun, Kim Myung-soo, Yoon So-hee, Heo Joon-ho and Park Chul-min. It aired on MBC every Wednesday and Thursday at 22:00 (KST) from May 10, 2017 for 40 episodes.