Ku Bong-seo and Yang Hoon have appeared together in 10 films between 1961 and 1976. Every shared film with year, roles and gross, plus who else each works with most.
| Year | Film | Box office |
|---|---|---|
| 1961 | Iljimae the Chivalrous Robber | |
| 1961 | Seong Chunhyang | |
| 1961 | Wonsullang | |
| 1962 | A Happy Day of Jinsa Maeng | |
| 1962 | The Way of Hwarang | |
| 1969 | A Man And a Gisaeng | |
| 1969 | Mines Are Better | |
| 1969 | School Excursion | |
| 1970 | Outlaw on a Donkey | |
| 1976 | Seong Chun-Hyang |
Ku Bong-seo also often with: Kim Hee-kap (14), Do Kum-bong (11), Heo Chang-kang (11), Choi Sam (9), Hwang Jeong-sun (9)
Yang Hoon also often with: Heo Chang-kang (15), Choi Nam-hyun (12), Kim Hee-kap (11), Do Kum-bong (10), Kim Jin-kyu (8)