Prior to her death, Ms Denney retired from acting, and lived in the KansasCity area (according to the actors' commentary on Willy Wonka & the Chocolate Factory (1971).'s DVD).
Started her career on local Missouri TV playing Marilyn the Witch on
"The Witching Hour."
In 2021, Dolores Denny - "Marilyn The Witch" - "The Witching Hour", was inducted into "The Official Horror Host Hall of Fame".