Read more about Oh Dae-su at: Wikipedia

Official Site: Show East

Oh Dae-su (Hangul: 오대수) is a fictional character and the protagonist of the 2003 South Korean film Oldboy, played by Choi Min-sik. Choi won a number of awards for his portrayal of Oh, including the 2004 Grand Bell Award and Asia Pacific Film Festival Award for Best Actor. He also trained for six weeks and lost twenty pounds to get in shape for the role, and did most of his own stunt work.

Oh Dae-su is loosely based on the character Shinichi Gotō from the Japanese manga Old Boy, on which the film is also based. He has also been compared to Franz Kafka's Josef K, from The Trial, due to the nature of his oblivious imprisonment.

Dae-su was born around 1959 and attended the Catholic Sangnok High School, from which he graduated in 1978. Dae-su witnessed an incestuous relationship between Lee Soo-ah and her brother Woo-jin, which later he spread as a rumour. The rumor caused Soo-ah to kill herself. He then became a businessman in Seoul and married Kim Ja-Hyun. The couple had a daughter, Yeun-Hee, who was born around 1985. He was also an overweight alcoholic, who often fought with his wife and neighbours. At the beginning of the film, a scene shows him in a police station after being arrested for being drunk and disorderly. His friend, Joo-Hwan, comes to the station and bails him out. They then go to a nearby phone box and Dae-su calls his wife and daughter. As it was his daughter's third birthday, he had bought her a pair of wings as a present. As he hands the phone over to Joo-Hwan, he disappears into the night and the camera pans over the neon-lit, rain soaked city. He later described meeting a man, who presumably knocked him unconscious and bundled him into a vehicle. This took place somewhere around 1988.

Dae-su then awakes in a windowless cell, which is identical to a hotel room, a number of days later. It is a private jail, run by gangsters who imprison people for pay. He is kept in his room 24/7 and has no contact with the outside world; the only people he sees are the guards who come and put food through a hatch in the door. He is never told why he is there or how long he will be there and is fed only fried dumplings. As he has only a television to keep him company, his mental health soon deteriorates and he begins hallucinating. He attempts suicide, but a gas which puts him into a state of unconsciousness is always pumped into the room before he can succeed.

Oh Dae-su has not been a contender in any CBUB matches.