K. P. Ummer and Mammootty have appeared together in 22 films between 1981 and 1998, with a combined box office of ₹2 crore. Every shared film with year, roles and gross, plus who else each works with most.
| Year | Film | Box office |
|---|---|---|
| 1981 | Oothikachiya Ponnu | |
| 1981 | Sphodanam | |
| 1982 | Chambalkadu | |
| 1983 | Mansoru Maha Samudram | |
| 1983 | Nanayam | |
| 1983 | Onnu Chirikku | |
| 1983 | Sesham Kazhchayil | |
| 1984 | Alakadalinakkare | |
| 1984 | Athirathram | |
| 1984 | Lakshmana Rekha | |
| 1984 | Mangalam Nerunnu | |
| 1985 | Angadikkappurathu | |
| 1986 | Sayam Sandhya | |
| 1986 | Shyama | |
| 1987 | Adimakal Udamakal | |
| 1988 | 1921 | ₹2 crore |
| 1988 | Sanghunadam | |
| 1988 | Shankanaatham | |
| 1990 | Iyer the Great | |
| 1990 | Midhya | |
| 1991 | Nayam Vyakthamakkunnu | |
| 1998 | Harikrishnans |
K. P. Ummer also often with: Adoor Bhasi (93), Prem Nazir (93), Bahadoor (45), Jayabharathi (43), Sheela (41)
Mammootty also often with: Sukumari (103), Jagathy Sreekumar (92), Nedumudi Venu (77), Janardhanan (70), Lalu Alex (70)