Oldboy
With no clue how he came to be imprisoned, drugged and tortured for 15 years, a desperate businessman seeks revenge on his captors.
Oh Dae-su
Lee Woo-jin
Mi-do
Mr. Han
No Joo-hwan
Park Cheol-woong
Hypnotist
Lee Soo-ah
Young Dae-su
Young Woo-jin
Young Joo-hwan
Suicidal Man
Young-ja
Beggar
Chief Secretary
Delivery Man
Man
Woo-jin's Bodyguard
Guard
Cheol-woong's Guard
Cigarette Gangster
Watch
Teacher
Electronics Store Owner
Nun