Han Suk-kyu

King Se-jong

Jang Hyuk

Kang Chae-yoon / Ddol-bok

Shin Sae-kyeong

So-yi / Dam

Lee Soo-hyuk

Yoon Pyeong

Cho Jin-woong

Moo-hyul

Seo Jun-young

Grand Prince Gwangpyeong

Yoon Je-moon

Jeong Gi-joon

Baek Yoon-sik

Yi Bang-won

Park Hyuk-kwon

Jung In-ji

Kim Ki-bum

Pak Paengnyeon

Shin So-yul

Mok-ya

Choi Il-hwa

Kim Jongseo

Kim Ki-bang

Cho Tak

Choi Woo-shik

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

Ahn Suk-hwan

Lee Shin-juk

Jo Hee-bong

Han Myung-hoi / Han Ga-nom

Lee Jae-yong

Cho Mal-sang

Kim Hyeon-soo

So-Yi (child)

Yeo Jin-goo

Ddol-bok (teen)

Jung Jong-chul

Ok Ddeol-i

Han Sang-jin

Sim Jong-soo

Woo Hyeon

Lee Bang-ji

Ryu Seung-su

Jang Seong-soo

Jung Da-bin

Yeon-doo

Kim Jong-kuk

Jeong Byul-gam

Kim Eung-soo

Ki Je-yeon

Jeon No-min

Jeong Do-kwang

Hyun Woo

Seong Sam-mun

Goo Seung-hyun

Kang Chae-yoon and Dam's eldest son

Song Ok-suk

Do Dam-daek

Lee Se-na

Geun-Ji

Kim Kyung-Jin

Gakseoli Boss

Song Joong-ki

King Se-Jong [Young]

Baek Su-ho

Yoon Pyeong (young)