Lee Geung-young

Seo Chil-sung

Carl Yoon: Baek Jae-min camp's who has reigned as the king of elections.

So Ri-bu

Choi Seok-ki, a corrupt teacher who loves money and tolerates school bullying.

Kwon Jae-yoo

Gu Jin-gi

Han Seong-beom

Cho Tae-sub

Lee In-hwan

Park Seung-joon (ep. 17)

Song Pil-jung

Yeo Byung-gyu

Edward Park (Korean name: Park Ki-pyo)/

Min Jin-won, the late Queen Inhyeon's brother, a leader of the Noron political faction and one of the most seasoned politicians in Joseon court.

Jang Gyu-seok, JBC news director.

Gi San, Yoo-jin's half-brother who hides a secret from his past.

Lee Geun-hwa

Cha Jin-man

Choi Dae-han/Ghost, NIS Director

Park Gun

Lee Kang-wook