Oh Kwang-rok is a South Korean actor.

Sympathy for Mr. Vengeance is a 2002 South Korean neo-noir crime thriller film directed and co-written by Park Chan-wook. The film stars Shin Ha-kyun as Ryu, a young, deaf-mute factory worker trying to earn enough money for his sister's kidney transplant by holding the daughter of a wealthy man for ransom, and the path of vengeance that follows when the plan goes awry. Alongside Ha-kyun, the film's cast includes Song Kang-ho, Bae Doona, Han Bo-bae, and Im Ji-eun.