Denise Nickerson
Denise Nickerson (April 1, 1957-July 10, 2019) was an American former actress best known for her roles as the gum-chewing Violet Beauregarde in the 1971 movie Willy Wonka & the Chocolate Factory as well as Amy Jennings and Nora Collins in the soap opera Dark Shadows. Description above from the Wikipedia article Denise Nickerson, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Willy Wonka & the Chocolate Factory
(Violet Beauregarde)
Smile
(Shirley)
Celluloid Bloodbath
(Self)
Howard
(Shirley (archive footage))
The Neon Ceiling
(Paula Miller)
The Dark Side of Innocence
(Gabriela Hancock)
Zero to Sixty
('Larry' Wilde)
The Koozebanian
(Kana Nelson)
Pure Imagination: The Story of 'Willy Wonka & the Chocolate Factory'
(Self)
Dark Shadows: The Haunting of Collinwood
(Amy Jennings)
The Man Who Could Talk to Kids
(Dena Pingitore)
Child of Glass
(Connie Sue Armsworth)
The Brady Bunch
Flipper
Dark Shadows
The Electric Company
Search for Tomorrow
After They Were Famous
(Self)