Young Nam Ko and Yoon Il-bong have appeared together in 3 films between 1979 and 1981. Every shared film with year, roles and gross, plus who else each works with most.
| Year | Film | Box office |
|---|---|---|
| 1979 | Pyro-Sonata | |
| 1980 | Outsiders | |
| 1981 | Suddenly at Midnight |
Young Nam Ko also often with: Go Yeong-nam (13), Kim Young-ae (3), Hah Myung-joong (2), Han Hye-ri (2), Jin Bong-jin (2)
Yoon Il-bong also often with: Park Am (7), Shin Seong-il (7), Yu Hyun-mok (7), Hwang Jeong-sun (6), Jo Mi-ryeong (6)