as King Se-jong

as Kang Chae-yoon / Ddol-bok

as So-yi / Dam

as Moo-hyul

as Jeong Gi-joon

as Yi Bang-won

as Jung In-ji

as Pak Paengnyeon

as Mok-ya

as Kim Jongseo

as Cho Tak

as Yoon Pyeong

as Jeong Gi-joon / Ga Ri-on (young)

as Lee Shin-juk

as Han Myung-hoi / Han Ga-nom

as Cho Mal-sang

as So-Yi (child)

as Ddol-bok (teen)

as Ok Ddeol-i

as Sim Jong-soo

as Lee Bang-ji

as Jang Seong-soo

as Yeon-doo

as Jeong Byul-gam

as Ki Je-yeon

as Jeong Do-kwang

as Grand Prince Gwangpyeong

as Seong Sam-mun

as Kang Chae-yoon and Dam's eldest son

as Do Dam-daek

as Geun-Ji

as Gakseoli Boss

as King Se-Jong [Young]