Boseman had not spoken publicly about his diagnosis
US actor Chadwick Boseman, best known for playing Black Panther in the hit Marvel superhero franchise, has died of cancer aged 43.
He died at home in Los Angeles with his wife and family by his side, a statement posted on social media said.
It was announced on Monday that Perry, 52, had died after suffering a stroke
Unlike many television actors, Luke Perry's celebrity and fanbase straddled generations.
Those who grew up in the 1990s will remember him best as brooding heartthrob Dylan McKay in Beverley Hills, 90210.
Lee, the brains behind Spider-Man, Black Panther and X-Men, has died in California, his family says
American writer and former president of Marvel Comics Stan Lee has died at the age of 95.
In 1961, Lee created The Fantastic Four for Marvel Comics, and went on to create titles including Spider-Man and The Incredible Hulk.
James Gunn has worked on the Guardians of the Galaxy films and the Avengers franchise
Disney has removed James Gunn as director of Guardians of the Galaxy Vol. 3 after a number of offensive social media posts resurfaced online.
The American filmmaker apologised after old tweets in which he appeared to joke about paedophilia and rape were unearthed and widely shared.
Anthony Bourdain in New York City in April
US celebrity chef and television personality Anthony Bourdain has been found dead in his hotel room, aged 61, of an apparent suicide.
The culinary bad boy was near Strasbourg, France, working on a shoot for his series, Parts Unknown, on CNN.