IMDB lists 122 acting credits for Ms. De Carlo, starting in 1941 and spanning 6 decades. Born Peggy Yvonne Middleton on September 1, 1922 in Vancouver, BC, her early roles paint a picture:
Showgirl at Neptune Club
Girl in Singing Quartette
And so on. While she never landed a significant movie role aside from the Munster movies, she did show what a trouper she was by creating the role of Carlotta Campion in the original Broadway cast of Follies, which ran for more than a year in 1971-72.