Sir Patrick Stewart, the British actor best known for his roles in Star Trek and X‑Men, died on Monday at his home in Los Angeles. He was 86. A statement from his representatives confirmed the death and noted that he had been battling Alzheimer’s disease and dementia. Stewart’s career spanned more than six decades and included work on stage, television and film. He was a three‑time Olivier Award winner and received a Tony Award nomination for his stage work. He also earned nominations for Emmy, Golden Globe and SAG Awards for his television and film performances. He appeared in seven seasons of Star Trek: The Next Generation and portrayed Charles Xavier, also known as Professor X, in the 2000 film X‑Men. Stewart reprised the role in Avengers: Doomsday, scheduled for release on 18 December 2026, marking his eighth portrayal of the character. Stewart was also a bestselling author, with several books appearing on the New York Times bestseller list.