Patrick Stewart, the acclaimed British actor celebrated for his work in both Shakespearean theater and blockbuster film franchises, has died at the age of 86, multiple outlets reported Thursday. Stewart, who achieved global stardom as Captain Jean-Luc Picard in "Star Trek: The Next Generation" and Professor Charles Xavier in the "X-Men" movies, died Wednesday at his home in Los Angeles, according to his longtime spokesperson, Kelly Bush Novak, as reported by The Guardian UK.