Oldboy

Choi Min-sik

Dae-su Oh

Yoo Ji-tae

Lee Woo-jin

Kang Hye-jeong

Mi-do

Kim Byeong-Ok

Mr. Han

Dae-han Ji

No Joo-hwan

Dal-su Oh

Park Cheol-woong

Seung-shin Lee

Yoo Hyung-ja

Jin-Seo Yoon

Lee Soo-ah

Tae-kyung Oh

Young Dae-su

Yoo Yeon-Seok

Young Woo-Jin

Il-han Oo

Young Joo-hwan

Young-hee Lee

Clock Store Lady

Yeong-ae Kim

Elevator Lady

Mi Mi Lee

Dental Nurse

Jae-Duk Han

Night Teacher

Jung Ae Kwak

Nun Teacher

San Kim

Electronics Store Owner

Chae-soo Jang

Woo-jin's Doctor