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Knowings died Tuesday in Los Angeles after spending several days in hospital following an asthma attack.
She was placed on life support after doctors determined that she had suffered brain damage, according to reports.
Knowings was a regular cast member on All That for three seasons and worked alongside several future stars.

Christy Knowings, the actress and comedian best known for her work on Nickelodeon’s sketch comedy series All That, has died at age 46.Knowings died in Los Angeles on Tuesday after being hospitalized for several days, according to the supplied reports. She had suffered an asthma attack on Friday and was later placed on life support after doctors determined that she had sustained brain damage.
Her family ultimately decided to remove her from life support Tuesday night. Her aunt, Tyleah Joseph, announced the death on Facebook the following day.The news prompted an outpouring of tributes from fans, many of whom remembered Knowings for her contribution to All That and the childhood memories associated with the series.
Knowings joined All That in 1997, becoming part of the Nickelodeon program’s main cast during a period when the show featured a number of young performers who later became widely recognized entertainers.She remained with the series for three seasons, appearing alongside Amanda Bynes, Kenan Thompson, Kel Mitchell, Lori Beth Denberg and Nick Cannon, according to the supplied reports.

During her time on the sketch comedy show, Knowings portrayed multiple characters, including Jessica and Penny Lane. She later identified Gloria Bankhead as her favorite role, describing the character in a 2019 interview with Bustle as an exaggerated Martha Stewart-style personality.
Knowings’ television career with All That followed her discovery through And Now This, a sketch comedy pilot produced by Rosie O’Donnell.That opportunity led to her becoming part of the ensemble that helped define All That during its late-1990s and early-2000s run.
Her manager, Al Hill, also remembered her for her versatility and commitment to entertainment, according to the supplied reports.The reports identify an asthma attack as the event that preceded Knowings’ hospitalization and subsequent brain damage.
The supplied material does not provide further medical details about the attack, her underlying health history or the specific circumstances that led to the reported brain injury. Those details should therefore not be assumed.
Following the announcement of her death, fans posted tributes beneath Knowings’ most recent Instagram post, which had been shared weeks earlier.Several commenters credited her with creating lasting childhood memories through All That, while others thanked her for the laughter she brought to viewers.
Her manager Al Hill also paid tribute to her professional versatility and dedication to entertainment.Knowings’ death marks the loss of a performer remembered by viewers who grew up watching All That. Her three-season tenure placed her among the young entertainers associated with Nickelodeon’s influential sketch-comedy era.
The response from former viewers also illustrates the lasting connection audiences can maintain with performers whose work became part of their childhood entertainment.
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