Duncan had a handful of minor roles before The Green Mile brought him an Academy Award nomination for Best Supporting Actor in 1999, but unfortunately he lost out to Michael Caine.
The film, based on the Stephen King novel of the same name, starred Tom Hanks as a corrections officer at a penitentiary in the 1930s.
Duncan played John Coffey, a convicted murderer.
In July, Michael suffered a heart attack and remained in intensive care for several weeks after.
At the time, his representative Joy said in a statement: 'His family are firm believers in the power of prayer and have asked that you keep him in yours during this time.'
TMZ originally broke the story that Michael's 38-year-old girlfriend performed 'heroic CPR and re-started' the actor's heart at his LA home before he was rushed to the hospital.
'Everyday GOD continues to smile upon my luv Michael Clarke Duncan on this arduous road to recovery,' Omarosa tweeted last month to her 30,000 followers.
'God is with us every step of the way!!'
The pair were together for two years and the former Apprentice contestant had been referring to the large star as 'my hubby' and 'my love' as she tended to his bedside.
