Kang Boo-ja and Hong Seong-jung have appeared together in 3 films between 1967 and 1975. Every shared film with year, roles and gross, plus who else each works with most.
| Year | Film | Box office |
|---|---|---|
| 1967 | Yeonhwa | |
| 1975 | Yeonhwa | |
| 1975 | Yeonhwa 2 |
Kang Boo-ja also often with: Chu Bong (4), Park Byeong-ho (4), Bang Su-il (3), Beak Song (3), Choi Il (3)
Hong Seong-jung also often with: Im Kwon-taek (4), Jang Jeong-kuk (4), Jin Bong-jin (4), Ju Sang-ho (4), Kim Ki-beom (4)