Ko Chang-seok

Miracle: Letters to the President

(Ra-hee's Father)

Ice Bar

(Cop)

Life Is Beautiful

(Purser)

The Case of Itaewon Homicide

(Alex's father)

The Host

(Nurse)

Antique

(Gay Club Master)

Project Wolf Hunting

(Ko Geon-bae)

The Killers

(Smile (segment "Silent Cinema"))

The Last Wolf

(Narrow Eyes)

Lady Vengeance

(Woo So-young's Husband)

Running Wild

(Gang Member)

No Mercy for the Rude

(Piano)

Going by the Book

(Woo Jong-dae (uncredited))

Rough Cut

(Director Bong)

Insadong Scandal

(Hojinsa, forgery factory president)

City Of Fathers

(Kim Kang-soo)

A Barefoot Dream

(Park In-Gi)

Hello Ghost

(Chain-smoking Ghost)

The Showdown

(Du-soo)

The Front Line

(Yang Hyo-sam)

Quick

(Detective Seo)

Mr. Idol

(Han Jong-tak)

Over My Dead Body

(Hwang Seong-goo)

Mr. Go

(Detective So)

Mr. XXX-Kisser

(Sung-cheol)

The Grand Heist

(Hong Seok-chang)

Secretly, Greatly

(Seo Sang-gu)

The Spy: Undercover Operation

(Department head Jin)

The Huntresses

(Moo-Myung)

Tabloid Truth

(Baek Moon)

Slow Video

(Doctor Seok)

The Con Artists

(Gu-in)

Seondal: The Man Who Sells the River

(Bo-won)

In Between

The Go to Restaurant

(Ko Shin-soo)

Second Half

(Seafood Restaurant Owner)

Miss Conspirator

(Detective So)

A Taxi Driver

(Sang-gu's Father)

Almost Che

(Police officer Kim)

1987: When the Day Comes

(Journalist (cameo) (uncredited))

Be with You

(Hong-gu)

Race to Freedom: Um Bok-dong

(Ahn Do-min)

Jesters: The Game Changers

(Hong-chil)

Dark Figure of Crime

(Diving Captain Jam-soo)

Innocence

(Seedsman)

I Want to Know Your Parents

(Teacher Jung)

Sinkhole

(Fire Chief)

Little Black Dress

(Director)

Countdown

(Principal)

Dream

(Jeon Hyo-bong)

The Face Reader

(Choi Dae-gam)

Secret Reunion

(Vietnam Boss)

The Match

Reply 1988

(Mi-ok's father)

The Game Caterers

(Self)

Glitch

(Kim Chanwoo)

The Good Detective

(Cha Moon-Ho)

The Night Watchman

(Minister Ddoong)

Dream

(Straw)

Ad Genius Lee Tae-baek

(Ma Jin-ga)

Good Doctor

(Jo Jung-mi)

Running Man

(Self)

My Little Old Boy

Overgrown Bromance

(Himself)

The Miracle We Met

(Song Hyun-chul (B))

Today's Webtoon

(On Ki-bong)

Way Back Love

(Jeong Yil-beom)

Encounter

(Nam Myeong-sik)

Infinite Challenge

(Self)

Chicken Nugget

(Baek-joong's father)

Arthdal Chronicles

(Tae-ap-dok)

Memorist

(Goo Kyung Tan)

Kill Me, Heal Me

(Dr. Seok Ho Pil)

House on Wheels

(Self)