Louis Koo and Herman Yau have appeared together in 5 films between 1997 and 2019, with a combined box office of HK$1.2 million. Every shared film with year, roles and gross, plus who else each works with most.
| Year | Film | Box office |
|---|---|---|
| 1997 | Troublesome Night 2 | |
| 1999 | The Masked Prosecutor | HK$1.2 million |
| 2010 | All's Well, Ends Well 2010 | |
| 2018 | A Home with a View | |
| 2019 | Death Notice | $615,042 |
Louis Koo also often with: Sean Lau (11), Gordon Lam (10), Johnnie To (10), Lam Suet (10), Daniel Wu (9)
Herman Yau also often with: Andy Lau (6), Anthony Wong (6), Lam Suet (6), Chapman To (4), Chan Tat-Kwong (3)