Black Panther Star Chadwick Boseman Dies At 43 Chadwick Boseman, the actor best known for his starring role in Black Panther, has passed away at 43. He had been fighting a four-year battle with colon cancer. The news was reported by the AP and then confirmed on Boseman's Twitter account, which states that he was diagnosed with stage III colon cancer in 2016. Over the last four years, it progressed to stage IV. "A true fighter, Chadwick persevered through it all, and brought you many of the films you have come to love so much. From Marshall to Da 5 Bloods, August Wilson's Ma Rainey's Black Bottom and several more, all were filmed during and between countless surgeries and chemotherapy. "It was the honor of his career to bring King T'Challa to life in Black Panther." The tweet goes on to say he died at home with his wife and family.