* The Thomas Crown Affair (1968) - Party Guest (uncredited)
* Blue Murder (1972) - Herself (as The Cowsills)
* Heartsounds (1984) - Carol (uncredited)
Television:
* The Ed Sullivan Show (1967-1972, 7 seasons) - Herself (as The Cowsills)
* The Tonight Show Starring Johnny Carson (1968-1972, 3 seasons) - Herself (as The Cowsills)
* The Glen Campbell Goodtime Hour (1969, 1 season) - Herself (as The Cowsills)
* The Dean Martin Show (1971, 1 season) - Herself (as The Cowsills)
* The Partridge Family (1971, 1 episode) - Herself
* The Love Boat (1977, 1 episode) - Herself
* Diff'rent Strokes (1982, 1 episode) - Herself
* Family Ties (1983, 1 episode) - Herself
* Webster (1984, 1 episode) - Herself
* St. Elsewhere (1985, 1 episode) - Herself
* The Facts of Life (1985, 1 episode) - Herself
* Growing Pains (1986, 1 episode) - Herself
* Who's the Boss? (1986, 1 episode) - Herself
* Just Shoot Me! (2000, 1 episode) - Herself (uncredited)
* The X-Files (2002, 1 episode) - Herself (uncredited)