According to TV Daily, The Demon (literal title) will have to search for a new leading actor as Gong Yoo decided not to join the project after all. Last month, it was reported that Kim Tae Ri and Gong Yoo are in talks to take the lead in Kim Eun HeeŌĆÖs new drama The Demon. Kim Eun Hee has established herself as a never-failing screenwriter in SBS with works like Sign and Ghost. The news quickly made headlines, but it seems like this highly-anticipated cast wonŌĆÖt come true. Kim Tae Ri is at the top of the candidate list for the female lead, but Gong Yoo has decided not to join the production. Source (1)