Monster

Kang Ji-hwan

Lee Kook-Chul / Kang Ki-Tan

Sung Yu-ri

Oh Soo-Yeon

Park Ki-woong

Do Gun-Woo

Claudia Kim

Yoo Sung-Ae

Jin Tae-hyeon

Do Gwang-Woo

Lee Gi-kwang

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

Lee Yul-eum

Oh Soo-Yeon (young)

Jung Bo-seog

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

Lee Sung-woo

Kim Bo-yeon

Hwang Gwi-Ja