Marvel, Star Trek Stars Post Heartbreaking Tributes to Patrick Stewart

Patrick Stewart's friends, colleagues, and fellow actors are paying tribute to the late thespian, who died on Wednesday at the age of 86 . In the wake of Stewart's death, heartfelt tributes have poured in across social media, including a heartbreaking remembrance from the actor's longtime collaborator, friend, and fellow knight Ian McKellen. Stewart, best known for playing Captain Jean-Luc Picard in Star Trek and Professor Charles Xavier in X-Men , died after “a brief and poignant journey with Alzheimer’s disease and Lewy body dementia,” his rep, Kelly Bush Novak, announced Thursday.