Yoon Chan-young

All of Us Are Dead

Lee Cheong-san

Dr. Romantic

Kang Dong-joo (Young)

You Hee-yeol's Sketchbook

Self

High School Return of a Gangster

Yi-heon/Kim Deuk-pal

I'm Doing Fine in Middle School

Han Cheol

The K-Star Next Door

Self

The Fault is Not Yours

Joon-young / Ji-geun

Manhole

Young Soo-chul

Sixth Sense

Self

Six Flying Dragons

Ddang-sae (young)

Mourning Grave

Young In-soo

Light for the Youth

Joon

Doctor John

Lee Ki Suk (A CIPA patient)

Nobody Knows

Ju Dong-myung

Hyper Knife

Seo Young-joo

The King in Love

Young Wang Rin

Still 17

Gong Woo-Jin (young)

Gap Dong

young Ryu Tae-oh

When a Man Falls in Love

young Lee Jae-hee

Hwajung

young Hong Joo-won

Birthday

Su-ho

Mothers

Jong-wook

Bubble Gum

Park Ri-Hwan (15 years old)

Hope or Dope

Gong Yoon Tak

Monstar

young Jung Sun-woo

Everything and Nothing

Ko Min-jae

Delivery Man

Seo Young-min

Mama

Han Geu-roo

조폭인 내가 고등학생이 되었습니다

Pluto Squad

Lee Woo Jin