Joseon Attorney

Woo Do-hwan as Kang Han-soo, a oejibu (attorney).

Bona as Lee Yeon-joo, a princess.

Lee Go-eun as young Lee Yeon-joo

Cha Hak-yeon as Yoo Ji-sun, Yeon-joo's fiancé, a judge of Hanseongbu.

Song Geon-hee as Seongjong of Joseon, Lee Hyul, the king of Joseon.

Kim Ae-ran as Grand Queen Dowager Jaseong, Lee Hyul's grandmother.

Han Sang-jo as Eunuch Go, Lee Hyul's right-hand man.

Chun Ho-jin as Yoo Je-se, Minister of Military Taxation, Ji-sun's father.

Choi Moo-sung as Choo Young-woo, the Right Chamchan.

Lee Jae-won as Won Dae-han, the Left Chamchan.

Choi Byung-mo as Im Sang-ho, the Right State Councilor.

Nam Kyung-eup as Choi Soo-yong, the Left State Councilor.

Lee Kyu-sung as Dong-chi, Han-soo's best friend and colleague.

Joo Ah as O-wol, a new gisaeng at Wolharu.

Yoo Ye-bin as Jong-hyang, a gisaeng at Wolharu.

Noh Haeng-ha as Myung-wol, a gisaeng at Wolharu.

Han So-eun as Kang Eun-soo, Han-soo's younger sister.

Kim Jong-tae as Kang Eon-jik, Han-soo's father.

Min Ji-ah as Mrs. Lee, Han-soo's mother.

Shin Dong-mi as Lady Hong, Yeon-joo's nanny, owner of Sowongak guesthouse.

Lee Si-hoo as Choi Yoon, Lady Hong's nephew.

Kim Do-yeon as Chef Baek, current chef in Sowongak.

Han Min as the former king, Yeon-joo's father and Lee Hyul's uncle.

Kang Hyun-oh as Kim Ji-ho, Ji-sun's bodyguard.

Lee Jun-hyeok as Master Jang, a former police officer.

Hong Wan-pyo as Jo Cheol-joo, Dae-bang's man.

Lee Chan-jong as Chu-sal, Dae-bang's man.

Lee Tae-gum as Mr. Lee, a public officer.

Hwang Man-ik as Heo Pan-yoon, the highest official of Hanseongbu.

Jung Ah-mi as Park Yeo-in, an old woman with a suspicious secret.

Jo Hee-bong as Park Je-soo, a pottery maker during the Joseon Dynasty who held power.

Bae Hae-sun as Lady Yeon

Kwon Ah-reum as Young-sil

Byung Hun as Young-sil's husband