Ko Chang-seok (๊ณ ์ฐฝ์) is a South Korean film actor.
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
The Spy: Undercover Operation
Department head Jin
Lady Vengeance
Woo So-young's Husband
Going by the Book
Woo Jong-dae (uncredited)
Quick
Detective Seo
Tabloid Truth
Baek Moon
The Front Line
Yang Hyo-sam
The Huntresses
Moo-Myung
Rough Cut
Director Bong
Insadong Scandal
Hojinsa, forgery factory president
City Of Fathers
Kim Kang-soo
No Mercy for the Rude
Piano
Secretly, Greatly
Seo Sang-gu
A Barefoot Dream
Park In-gi
Running Wild
Gang Member
Hello Ghost
Chain-smoking Ghost
The Showdown
Du-soo
The Con Artists
Gu-in
Over My Dead Body
Hwang Seong-goo
The Grand Heist
Hong Seok-chang
Mr. XXX-Kisser
Sung-cheol
Seondal: The Man Who Sells the River
Bo-won
Mr. Go
Detective So
Slow Video
Doctor Seok
Mr. Idol
Han Jong-tak
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
Seung-pil
Superman in Early Summer
Superman
Boss
Believe
(segment "come to an end")