Robert Carradine

Robert Carradine.

The actor known for his roles in Lizzie McGuire and Revenge of the Nerds has died.

He was 71 years old.

His family says he died after a valiant struggle with bipolar disorder.

Several media outlets reporting that he took his own life.

In a statement to Deadline, his family wrote in part referencing his battle with the disorder.

We hope his journey can shine a light and encourage addressing the stigma that attaches to mental illness.

Carradine starred as Louis Skolnick in the Nerds franchise and played Hilary Duff's father in the Disney Channel series Lizzie McGuire and the Lizzie McGuire movie.

Duff posting photos on Instagram writing in part, this one hurts, while actor Jake Thomas, who played her brother, noted, my heart hurts today.

Michelle Polino, Fox News.