In the days following Robert Carradine's death, his family spoke openly about the private battle the actor had fought for years - a nearly 20-year struggle with bipolar disorder that had shaped much of his life behind the scenes. Robert - best known for his role in the 1984 comedy classic Revenge of the Nerds and for later television appearances, including Lizzie McGuire - died by suicide on February 23, 2026, at age 71. In a statement confirming his death, his brother Keith Carradine said the actor had endured a long fight with the illness.