Chadwick was known to millions of fans around the world as superhero Black Panther.
The ascent of Michaela Coel shows no signs of slowing down.
The Black Panther star said his grandma would be proud.
One of Boseman's final acts was to help a sick child, according to Nate Moore.
Only a “tight-knit” circle of friends and his team were aware of the actor’s diagnosis.
The actor was as regal as the stories he shared with the world.
A tweet from former US president Barack Obama that quoted Nelson Mandela previously held that title.
"Because he was a caretaker, a leader and a man of faith, dignity and pride, he shielded his collaborators from his suffering," the filmmaker wrote.
Fans have been sharing their favourite memories of the actor on social media.
The "real-life superhero" played icons Jackie Robinson and James Brown, and he was Black Panther's beloved king, T'Challa.