Share Tweet Pin Email By Isabella Torregiani 1:44pm PST, Feb 24, 2026 _ Lizzie McGuire alum Hilary Duff honored her on-screen dad, Robert Carradine, after he died at 71 following a "valiant struggle" with bipolar disorder. Keep reading to see her tribute...MORE: Follow Wonderwall on MSN for more top news _ After Robert Carradine's family confirmed his death on February 23, Hilary Duff turned to Instagram to honor the late actor and reflect on their time together.