Patrick Stewart, the British actor famous for playing the Star Trek captain, Jean-Luc Picard, as well as the founder of Marvel's X-Men, Professor X (Prof. Charles Francis Xavier), has unfortunately passed away at the age of 86.

Patrick Stewart, the British actor, best known for portraying Capt. Jean-Luc Picard in "Star Trek: The Next Generation" and Professor Charles Xavier in the "X-Men" film franchise, died Wednesday, Oct. 28, at his Los Angeles home following a "brief and poignant journey with Alzheimer's disease and Lewy body dementia," according to a statement shared on his social media Thursday. He was 86.

"His sonorous voice and singular talent will forever be synonymous with indelible performances in every genre. He explored the human condition in all its poetic complexity and brought hope not only to the far reaches of the Marvel Cinematic Universe, but into science fiction’s most iconic final frontier aboard the Starship Enterprise," the statement continued.

May he rest in peace.