Biography
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.
Filmography
Cast Credits

Howard
Character: Shirley (archive footage)
MOVIE • 2018

Celluloid Bloodbath
Character: Self
MOVIE • 2012

Dark Shadows: The Haunting of Collinwood
Character: Amy Jennings
MOVIE • 2009

After They Were Famous
Character: Self
TV • 2002

Pure Imagination: The Story of 'Willy Wonka & the Chocolate Factory'
Character: Self
MOVIE • 2001

The Koozebanian
Character: Kana Nelson
MOVIE • 1978

Zero to Sixty
Character: 'Larry' Wilde
MOVIE • 1978

Child of Glass
Character: Connie Sue Armsworth
MOVIE • 1978

The Dark Side of Innocence
Character: Gabriela Hancock
MOVIE • 1976

Smile
Character: Shirley
MOVIE • 1975

The Man Who Could Talk to Kids
Character: Dena Pingitore
MOVIE • 1973

The Electric Company
Character:
TV • 1971

Willy Wonka & the Chocolate Factory
Character: Violet Beauregarde
MOVIE • 1971

The Neon Ceiling
Character: Paula Miller
MOVIE • 1971

The Brady Bunch
Character:
TV • 1969

Dark Shadows
Character:
TV • 1966

Flipper
Character:
TV • 1964

Search for Tomorrow
Character:
TV • 1951