Sir Patrick Stewart has appeared in over 60 of the Royal Shakespeare Company’s stage productions and made his Broadway debut in 1970|Maximilian Buhn|CC BY-SA 4.0

Veteran English actor Sir Patrick Stewart, known for playing Captain Jean-Luc Picard in Star Trek: The Next Generation and Professor Charles Xavier in the X-Men film franchise, has passed away at his Los Angeles home at age 86.

He was battling Alzheimer’s disease and Lewy body dementia and was in the care of his wife, Sunny.

An acclaimed stage and screen actor, Stewart has appeared in over 60 of the Royal Shakespeare Company’s stage productions and made his Broadway debut in 1970.

He portrayed Professor Xavier eight times in the X-Men franchise and is appearing in the upcoming Avengers: Doomsday, set for release on December 18.

His distinguished six-decade career included two Olivier Awards, a Grammy for his Peter and the Wolf narration, and four Emmy nominations.