Robert Carradine, the American actor celebrated for his role as the father of Hilary Duff's character in the Disney Channel series "Lizzie McGuire," has died at the age of 71. His family announced his passing on Tuesday, February 24, 2026, revealing that he succumbed after a more than twenty-year battle with bipolar disorder, with reports suggesting suicide. Carradine, who also starred in the 1984 comedy "Revenge of the Nerds" as Lewis Skolnick, was the son of actor John Carradine and half-brother to David Carradine. His loved ones are remembering him as a source of light and hope, emphasizing his courageous fight against mental illness and aiming to raise awareness.