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Robert Carradine, a character actor best known for his roles in the 1984 comedy “Revenge of the Nerds” and the Disney Channel series “Lizzie McGuire,” has died. He was 71 years vintage. Carradine’s family confirmed his death on Tuesday, February 24, 2026, revealing he had been battling bipolar disorder for nearly two decades. The news has prompted an outpouring of tributes from fellow actors and fans remembering his warmth and comedic timing.
Carradine’s career spanned decades, encompassing film, television, and even game show hosting. Even as he appeared in numerous projects, he achieved widespread recognition as Lewis Skolnick, the endearing and often-quoted leader of the nerds in “Revenge of the Nerds.” His distinctive, guttural laugh became a signature element of the character, cementing his place in pop culture history. More recently, a new generation knew him as Sam McGuire, the father of Hilary Duff’s character in “Lizzie McGuire,” a role that showcased his ability to portray relatable and supportive parental figures.
Born on March 24, 1954, Carradine came from a prolific acting family. He was the youngest son of actor John Carradine and the brother of actors David Carradine and Keith Carradine, as well as Christopher Carradine, a former vice president of Walt Disney Imagineering, according to CNN. His brother, Keith Carradine, shared with The Associated Press that Robert died by suicide, and the family wanted to be open about his long struggle with bipolar disorder, hoping it would encourage others to seek help and reduce the stigma surrounding mental illness.
Hilary Duff, who starred alongside Carradine in “Lizzie McGuire,” expressed her grief on Instagram, writing, “This one hurts. It’s really hard to face this reality about an old friend.” She continued, recalling the warmth of the on-screen McGuire family and her gratitude for the care she felt from her “on-screen parents.” Jake Thomas, another “Lizzie McGuire” cast member, also shared his sadness on Instagram, describing Carradine as “one of the coolest guys you could ever meet.”
Carradine’s daughter, Ever Carradine, also paid tribute to her father on Instagram, remembering his playful spirit and unwavering support. Actor Martha Plimpton, Carradine’s niece, described him as “the best one of all 8 brothers; blood, adopted, and step” in a heartfelt Instagram post.
Beyond “Revenge of the Nerds” and “Lizzie McGuire,” Carradine’s filmography included roles in “The Long Riders” and numerous other projects. He also co-hosted the game show “King of the Nerds” alongside Curtis Armstrong, further embracing his connection to the “nerd” culture that had defined much of his career. A photo from the 2013 TNT and TBS Upfront event shows Carradine and Armstrong together, highlighting their camaraderie.
Robert Carradine attends the TNT and TBS 2013 Upfront at the Hammerstein Ballroom in New York on May 15, 2013. (Photo by Evan Agostini/Invision/AP, File)
Carradine’s passing underscores the importance of addressing mental health challenges and reducing the stigma associated with bipolar disorder. His family’s openness about his struggle serves as a powerful reminder that seeking help is a sign of strength, not weakness. The actor’s decades-long career and the affection he garnered from audiences demonstrate the lasting impact of his talent and personality.
As fans and colleagues mourn the loss of Robert Carradine, his work will continue to bring joy and laughter to audiences for generations to come. His contributions to comedy and television, particularly his iconic portrayal of Lewis Skolnick, have secured his place as a beloved figure in entertainment history. The entertainment world has lost a talented and cherished performer.
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