Donald O'Brien and Joe D'Amato have appeared together in 4 films between 1979 and 1992. Every shared film with year, roles and gross, plus who else each works with most.
| Year | Film | Box office |
|---|---|---|
| 1979 | Tough to Kill | |
| 1990 | Quest for the Mighty Sword | |
| 1990 | Troll 3 | |
| 1992 | Frankenstein 2000 |
Donald O'Brien also often with: Albert Rémy (2), Chris Murphy (2), Cinzia Monreale (2), Dina Morrone (2), Domenico Semeraro (2)
Joe D'Amato also often with: Laura Gemser (4), Antonio Casale (2), Carolyn De Fonseca (2), Chris Murphy (2), Dina Morrone (2)