Monster

Lee Gi-kwang

Lee Kook-Chul / Kang Ki-Tan (young)

Lee Yul-eum

Oh Soo-Yeon (young)

Jung Bo-seok

Byun Il-Jae

Park Young-kyu

Do Choong

Cho Bo-ah

Do Shin-Young

Lee Duck-hwa

Hwang Jae-Man

Bae Jong-ok

Jang Man-Ok

Jung Woong-in

Moon Tae-Gwang

Kim Bo-yeon

Hwang Gwi-Ja

Kim Hye-eun

Hwang Ji-Soo

Kim Won-hae

Min Byung-Ho

EL

Ok Chae-Ryung

Kang Han-saem

Kim Min-Seo

Aide

Cha Soon-hyeong

Liu