McDonnell is perhaps best known for films and television series as The Octagon, Spiker, Semi-Tough, Dallas, T. J. Hooker and her role as the new Marilyn Munster in the 1981 television film The Munsters' Revenge.
The Octagon
(Amy Lee)
Island Claws
(Jan Raines)
Semi-Tough
(Choir Leader (uncredited))
Spiker
(Marcia Steinbech)
Visions of Christmas Past
(Margot Eldridge)
The Scarlett O'Hara War
(Isobel)
Once Upon a Spy
(Susan Webster)
The Munsters' Revenge
(Marilyn Munster)
Samurai
(Marianne)
The Seniors
7 Kills, 3 Songs & a Banana
Dallas
(Maureen)
T. J. Hooker
(Officer Kelly Sanders)
T. J. Hooker
(Sarah Campbell)