Patrick Stewart, the acclaimed English actor best known as Captain Jean-Luc Picard in Star Trek: The Next Generation and Professor X in the X-Men movies, has died at 86. His representative says he died Wednesday at his Los Angeles home after a journey with Alzheimer’s disease and Lewy body dementia. Stewart enjoyed a celebrated career spanning theater, television and film, playing Captain Picard for seven seasons and returning to the role in movies and the series Star Trek: Picard. He portrayed Professor X for more than two decades, becoming one of Marvel’s most recognizable stars.