All That Alum Christy Knowings Dies at 46

Christy Knowings, a cast member of Nickelodeon’s All That who appeared for three seasons, died at 46 after suffering an asthma attack that left her with brain damage; life support was removed in the Los Angeles area, with her aunt announcing the death on Facebook and noting no disclosed cause beyond the brain injury. Knowings later appeared on Sesame Street with her twin brother Chris Knowings. Her passing marks the second former All That cast member to die in 2026, following Kianna Underwood’s death earlier in the year.