Charles Cyphers and Alan Koss have appeared together in 1 film in 1976. Every shared film with year, roles and gross, plus who else each works with most.
| Year | Film | Box office |
|---|---|---|
| 1976 | Assault on Precinct 13 |
Charles Cyphers also often with: Jamie Lee Curtis (6), John Carpenter (5), Nancy Kyes (5), Nancy Stephens (5), Kyle Richards (4)
Alan Koss also often with: Al Nakauchi (1), Alex Rocco (1), Austin Stoker (1), Carolyn Pickman (1), Cliff Battuello (1)