United Kingdom, Feb. 24 -- Lizzie McGuire star Robert Carradine has died aged 71.

The Revenge Of The Nerds actor's brother Keith Carradine revealed his sibling took his own life after a "nearly two-decade battle with bipolar disorder", a mental health condition where you have extreme mood changes.

Robert's family said in a statement to Deadline: "It is with profound sadness that we must share that our beloved father, grandfather, uncle, and brother Robert Carradine has passed away.

"In a world that can feel so dark, Bobby was always a beacon on light to everyone around him.

"We are bereft at the loss of this beautiful soul and want to acknowledge Bobby's valiant struggle against his nearly two-decade battle with Bipolar Disorder.

"We...