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