Yoon Chan-young

Hyper Knife

Seo Young-joo

High School Return of a Gangster

Yi-heon/Kim Deuk-pal

Hope or Dope

Gong Yoon Tak

All of Us Are Dead

Lee Cheong-san

Nobody Knows

Ju Dong-myung

Doctor John

Lee Ki Suk (A CIPA patient)

Still 17

Gong Woo-Jin (young)

The King in Love

Young Wang Rin

Dr. Romantic

Kang Dong-joo (Young)

Bubble Gum

Park Ri-Hwan (15 years old)

Six Flying Dragons

Ddang-sae (young)

Hwajung

young Hong Joo-won

Mama

Han Geu-roo

Gap Dong

young Ryu Tae-oh

Monstar

young Jung Sun-woo

When a Man Falls in Love

young Lee Jae-hee

You Hee-yeol's Sketchbook

Self