The actor Michael Clarke Duncan suffered a myocardial infarction on July 13 and never fully recovered
Green Mile actor Duncan dead at 54
Michael Clarke Duncan, who was nominated for an Academy Award for his role in The Green Mile, an adaptation of a Stephen King work, has died at age 54, his representatives said.
Duncan "passed away peacefully today," the manager, Dan Spilo, said. "He was a great man with a huge heart, and it was an honor and a privilege to represent him."
Duncan's girlfriend Omarosa Manigault, one-time star of the reality television show The Apprentice, asked for privacy through Duncan's publicist Joy Fehily.
The actor "suffered a myocardial infarction on July 13 and never fully recovered," Ms Fehily said in a statement.
"Manigault is grateful for all of your prayers and asks for privacy at this time. Celebrations of his life, both private and public, will be announced at a later date."
Born in Chicago on December 10, 1957, Duncan moved to Los Angeles to pursue his acting career. The imposing actor, who was 1.96 metres tall, worked as a bodyguard for Will Smith and Jamie Foxx while securing smaller roles.
His breakthrough performance came when he was cast as convict John Coffey in The Green Mile, a man wrongly accused of child murder and rape, who has supernatural powers. Tom Hanks co-starred as a prison guard.
Beyond his Oscar nomination, Duncan also earned Golden Globe and Screen Actors Guild nods.
He acted in about 50 films, and was notably featured in Armageddon, a role that was the stepping stone to his casting in The Green Mile.