Sir Patrick Stewart Dies After Battle With Alzheimer's Disease And Lewy Body Dementia At 86

Sir Patrick Stewart, the actor loved as Professor X in the X-Men films, has died at 86. He died at his home in Los Angeles. His family announced the news a day later. NBC News carried the statement from his spokesperson.

For more than 50 years, Stewart worked on stage, television and film. His death has also raised many health questions. Many people are searching for the Patrick Stewart death cause and here is what we know about it. 

Patrick Stewart’s Cause of Death 

Is Patrick Stewart dead? Yes. Here is what the family statement and news reports say:

• Patrick Stewart died on Wednesday 28 October at his home in Los Angeles.
• His wife, Sunny, was with him.
• The cause was Alzheimer’s disease and Lewy body dementia.
• The family announced the news on Thursday. 

All of us at Marvel Studios are deeply saddened by the passing of Sir Patrick Stewart. Sir Patrick brought Professor Charles Xavier to life with extraordinary grace, intelligence, and humanity, defining the character for generations of fans, from "X-Men" to "Logan" to "Avengers: Doomsday." He was a singular talent, a generous collaborator, and a true gentleman. Our hearts go out to his wife Sunny, his children, his friends, and the countless fans around the world whose lives he touched with his art.

— Marvel Studios (@MarvelStudios) October 29, 2026

 No further medical details have been shared. So we should not guess about his symptoms or treatment.

Patrick Stewart’s Alzheimer’s Disease and Lewy Body DementiaSir Patrick Stewart death cause Alzheimers

Both conditions are neurodegenerative. This means brain cells slowly lose their function. Both affect memory, thinking and attention.

Here are the key points:

• Alzheimer’s disease is the most common cause of dementia. It involves protein “plaques” that damage brain cells.
• Lewy body dementia is the second most common. It is linked to the Lewy body protein, and people over 60 face a higher risk.
• When a person has both, it is called mixed dementia, according to the Alzheimer’s Association, as quoted by Today.
• Lewy body dementia can also cause visual hallucinations, movement problems and changes in alertness.

A 2023 study in Frontiers in Aging Neuroscience looked at 1,920 people in a US research database. All had brain checks after death. Researchers found:

• More than 61% of people with both conditions were diagnosed as having Alzheimer’s alone.
• Of those diagnosed with Alzheimer’s, over 32% also had Lewy body changes.
• The authors said clinical diagnosis of mixed dementia had “poor sensitivities.”

In simple terms, doctors often miss the second condition. The study looks at groups, not individuals. It does not tell us about Stewart’s own care.

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Patrick Stewart Movies, Doomsday, Professor X and Ian McKellen

Sir Ian McKellen has made a statement on the tragic passing of Sir Patrick Stewart. “He wore his heart on his sleeve, which made him a man to rely on, to admire and in my case, love.” https://t.co/vOc3ypGNH4

— DiscussingFilm (@DiscussingFilm) October 30, 2026

Stewart first played Charles Xavier, or Professor X, in 2000’s X-Men. He also starred as Captain Jean-Luc Picard in Star Trek: The Next Generation. His other Patrick Stewart movies include Logan and Doctor Strange in the Multiverse of Madness.

He often shared the screen with his friend Ian McKellen, who played Magneto. Den of Geek reports that the two return in Avengers: Doomsday, due on 18 December 2026. This means Patrick Stewart Doomsday may be one of his final screen roles.