Christy Knowings, Los Angeles, California: Tragic Loss Hits ‘All That’ Cast Again as Star Dies Following Fatal Asthma Attack

For people who grew up watching Saturday night television in the late 1990s, news from Los Angeles brings heavy sadness. Christy Knowings, a cast member on Nickelodeon’s sketch series “All That,” died at age 46. Her death marks the second time in 2026 that fans and former co-stars have mourned a cast member from the show.

Knowings died Tuesday night at a Los Angeles hospital following complications from a sudden asthma attack. Emergency responders took her to the hospital on Friday, where doctors placed her on life support due to brain damage caused by oxygen deprivation. She remained on life support until her family decided to remove the equipment on Tuesday evening.

Her death comes months after another former “All That” cast member, Kianna Underwood, died in January. Underwood was killed in a hit-and-run traffic crash in Brooklyn, New York. The loss of two former young cast members within the same year has drawn widespread grief from fans of the series.

Knowings joined “All That” in 1997 during the show’s popular third season. The series helped launch several young performers into television and film careers. Knowings quickly became a central performer on the show, playing characters like Jessica in the “Whateverrr!!!” sketch alongside Amanda Bynes.

Her path to “All That” started with another Nickelodeon project. Knowings first appeared on “And Now This,” a special hosted by Rosie O’Donnell. That appearance opened the door for her three-year run on the network’s flagship comedy show, where she performed in dozens of sketches.

Knowings continued working in television after leaving the sketch show. She made guest appearances on “Sesame Street” in three episodes, acting alongside her twin brother Chris Knowings. She later ventured into music, recording and releasing a folk single called “To the World.”

Family members have kept further details about the medical emergency private. Knowings leaves behind a body of work that shaped the childhoods of millions of viewers who spent their weekends watching her television performances.