Cast
Han Suk-kyu
King Se-jong • 24 episodes
Jang Hyuk
Kang Chae-yoon / Ddol-bok • 24 episodes
Shin Se-kyung
So-yi / Dam • 24 episodes
Lee Soo-hyuk
Yoon Pyeong • 24 episodes
Cho Jin-woong
Moo-hyul • 24 episodes
Seo Jun-young
Grand Prince Gwangpyeong • 24 episodes
Yoon Je-moon
Jeong Gi-joon • 24 episodes
Baek Yoon-sik
Yi Bang-won • 24 episodes
Park Hyuk-kwon
Jung In-ji • 24 episodes
Kim Ki-bum
Pak Paengnyeon • 24 episodes
Shin So-yul
Mok-ya • 24 episodes
Choi Il-hwa
Kim Jongseo • 24 episodes
Kim Ki-bang
Cho Tak • 24 episodes
Choi Woo-shik
Jeong Gi-joon / Ga Ri-on (young) • 24 episodes
Ahn Suk-hwan
Lee Shin-juk • 24 episodes
Jo Hee-bong
Han Myung-hoi / Han Ga-nom • 24 episodes
Lee Jae-yong
Cho Mal-sang • 24 episodes
Kim Hyeon-soo
So-Yi (child) • 24 episodes
Yeo Jin-goo
Ddol-bok (teen) • 24 episodes
Jung Jong-chul
Ok Ddeol-i • 24 episodes
Han Sang-jin
Sim Jong-soo • 24 episodes
Woo Hyeon
Lee Bang-ji • 24 episodes
Ryu Seung-su
Jang Seong-soo • 24 episodes
Jung Da-bin
Yeon-doo • 24 episodes
Kim Jong-Kuk
Jeong Byul-gam • 24 episodes
Kim Eung-soo
Ki Je-yeon • 24 episodes
Jeon No-min
Jeong Do-kwang • 24 episodes
Hyun Woo
Seong Sam-mun • 24 episodes
Goo Seung-hyun
Kang Chae-yoon and Dam's eldest son • 24 episodes
Song Ok-suk
Do Dam-daek • 24 episodes
Lee Se-na
Geun-Ji • 24 episodes
Kim Kyung-Jin
Gakseoli Boss • 24 episodes
Song Joong-ki
King Se-Jong [Young] • 24 episodes
Baek Su-ho
Yoon Pyeong (young) • 24 episodes
David Lee
Park Se Myung • 1 episodes
