Looks like the hype about Kim Nam Gil's role as Bidam by MBC for Queen Seon Duk was well worth it as his entrance in episode 21 saw many giving him the thumbs up. Bidam was an important character in Queen Seon Duk's history as he had personally led a revolt against her to overthrow her as queen. The role has never been acted out before in dramas or movies, and thus it was particularly meaningful for Kim Nam Gil to be acting out the role. Screenwriter, Park Sang Yun has utmost confidence in Kim Nam Gil to act out the character whose personality changes drastically into a darker character later on in the drama. Besides Kim Nam Gil whom she considers as the drama's secret weapon, she has another one that's coming up soon in the form of Yoo Seung Ho as Kim Chun Chu, son of Princess Chun Myung. That will be soon. Who is Bidam exactly? Bidam is actually the son of King Jinji and Mishil. After failing to get King Jinji on her side, Mishil stages a coup, replacing him with King Jinpyeong, and also discarding baby Bidam in the process since she has no use for him any longer. It's exactly this that leads to Bidam developing an eccentric character with a nut loose, one that mirrors his mother, Mishil. We also learn in episode 21 that Bidam was a student of the god-like Hwawang fighter, Munno, meaning that he has also inherited his god-like fighting skills. Bidam is thus a hybrid of Mishil's cunning and Munno's righteousness. Bidam does not belong to either Deokman nor Mishil, he will later become someone who is really inhuman, even more evil than Mishil in order to achieve his ambition. Viewers were also highly piqued at the preview of episode 22 which sees Bidam and Yushin standing side-by-side, shielding Deokman from Mishil's minions, foreshadowing a love triangle, which ultimately leads to a bloody end for Bidam at the end. Bidam also became the No.1 search term on Naver yesterday after episode 21 was shown. I can't foresee how SBS nor KBS can do anything with their dramas.