American actor Robert Carradine best known for portraying Lewis Skolnick in the cult comedy Revenge of the Nerds and as Sam McGuire, the father figure on Disney’s Lizzie McGuire — has died at the age of 71. His family confirmed the news on February 23, 2026, revealing that he died by suicide after a long struggle with bipolar disorder.

Carradine’s passing has reverberated across the entertainment world, prompting reflection on his decades-long career and the mental health challenges he faced in the public eye.

A Storied Acting Career

Born Robert Reed Carradine on March 24, 1954, in Los Angeles, California, Carradine belonged to one of Hollywood’s most famous acting families. He was the youngest son of acclaimed character actor John Carradine, and his brothers — David, Keith, and Bruce Carradine — were also actors or involved in entertainment.

Carradine’s acting career began in his late teens with roles in films like The Cowboys (1972), starring alongside John Wayne. He went on to build a varied career, working with respected directors and appearing in films such as Mean Streets, Coming Home, The Long Riders, and Escape from L.A.

However, it was his role in Jeff Kanew’s 1984 comedy Revenge of the Nerds — in which he starred as the lovable nerd Lewis Skolnick — that brought him lasting recognition. The film became a breakout hit and developed a cult following, spawning sequels that Carradine continued to appear in.

In the early 2000s, Carradine introduced a new generation to his work through television, portraying Sam McGuire, the warm-hearted father in Disney Channel’s Lizzie McGuire series (2001–2004) and its theatrical film adaptation. The role endeared him to fans of all ages and linked his legacy to a beloved pop-culture franchise.

Struggles with Mental Health

Carradine’s family revealed in their statement that the actor had suffered from bipolar disorder for nearly two decades — a battle that, in their words, he fought "valiantly" but ultimately could no longer withstand. They said his journey was meant to help shed light on mental health struggles and to reduce stigma around psychiatric conditions.

His brother, Keith Carradine, echoed that message, stressing that “there is no shame” in mental illness and expressing a desire to celebrate Robert’s life and courage. He called his brother “profoundly gifted” and remembered him for his humour, wisdom, and accepting nature.

The family’s openness about Carradine’s diagnosis and its effects is still relatively rare among high-profile artists, and it has prompted broader discussion about how bipolar disorder — a condition characterised by extreme mood shifts between highs and lows — can affect individuals over many years.

The Circumstances of His Death

According to multiple reports and the family’s statement, Robert Carradine died by suicide, a decision his family attributed to his prolonged struggle with bipolar disorder. They asked for privacy during their grief while also hoping that his story would encourage others to talk more openly about mental health.

Friends, collaborators, and fans have reacted with shock and sadness. Many have taken to social media to share memories of Carradine’s performances and to express sorrow over the circumstances of his death. While outpourings online often emphasise personal memories, they also reflect wider concerns about mental health awareness and support. (Online reaction summaries)

Tributes from Co-Stars and the Community

Among the condolences were tributes from actors connected to Carradine’s most recognised roles. Hilary Duff, star of Lizzie McGuire, posted an emotional tribute, describing her former co-star as warm, caring, and a comforting presence on set. She said, “This one hurts,” reflecting the genuine connection many had with Carradine beyond his professional persona.

Jake Thomas, who played her on-screen brother in Lizzie McGuire, also shared fond memories, recalling Carradine’s sense of humour, talent, and familial warmth. Such responses underline the impact his personal and professional relationships had on colleagues and audiences alike.

Legacy and Broader Impact

Robert Carradine’s career spanned more than five decades, with roles that crossed genres and generations — from Westerns and cult comedies to family television. His work in Revenge of the Nerds remains a cultural reference point in discussions about outsider characters in Hollywood comedies, while his contributions to Lizzie McGuire helped shape a formative TV experience for many young viewers.

His passing has not only reminded audiences of the breadth of his career but also opened up conversations about the challenges many actors and artists face behind the scenes. By sharing his mental health journey, Carradine’s family has sought to spur empathy and understanding — a message that continues to resonate with many in the wake of his death.

Carradine is survived by his children, grandchildren, siblings, nieces, and nephews, leaving behind both a personal family legacy and a professional one that spans film and television history.