BLACK PANTHER Star Lupita Nyong'o Pens An Emotional Tribute To The Late Chadwick Boseman Chadwick Boseman's tragic and sudden death after a four-year battle with cancer shocked the world, and we've watched tribute after tribute pour in over the past couple of weeks. Some of his friends and co-stars understandably need more time than others and deal with grief in their own way, but Black Panther star Lupita Nyong'o has now shared some touching words. Taking to Twitter to share a lengthy message, she recalls working with Boseman on the Marvel Studios movie, saying: "When we came together to make Black Panther, I remember being struck by his quiet, powerful presence.