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.

KNOWN FOR

Dark Shadows
1968
The Electric Company
1972
The Brady Bunch
1974
Flipper
1965
Willy Wonka & the Chocolate Factory
1971
After They Were Famous
2003
Search for Tomorrow
1951
Smile
1975
Howard
2018
Pure Imagination: The Story of 'Willy Wonka & the Chocolate Factory'
2001
Zero to Sixty
1978
The Man Who Could Talk to Kids
1973

FILMOGRAPHY

All
Movies
TV
Acting
18
2018
Howard
as Shirley (archive footage)
2012
Celluloid Bloodbath
as Self
2009
Dark Shadows: The Haunting of Collinwood
as Amy Jennings (archive footage)
2003
After They Were Famous
as Self
2001
Pure Imagination: The Story of 'Willy Wonka & the Chocolate Factory'
as Self
1978
Zero to Sixty
as 'Larry' Wilde
1978
The Koozebanian
as Kana Nelson
1978
Child of Glass
as Connie Sue Armsworth
1976
The Dark Side of Innocence
as Gabriela Hancock
1975
Smile
as Shirley
1974
The Brady Bunch
1973
The Man Who Could Talk to Kids
as Dena Pingitore
1972
The Electric Company
as Allison - Member of the Short Circus
1971
Willy Wonka & the Chocolate Factory
as Violet Beauregarde
1971
The Neon Ceiling
as Paula Miller
1968
Dark Shadows
1965
Flipper
1951
Search for Tomorrow