The 42-year-old, who was beset by personal problems in recent years, was being treated for the serious head injury in hospital in Utah, America.
He had apparently suffered the injury after a fall earlier this week.
Coleman’s manager John Alcanter had said the actor was in a critical condition and was unconscious on life support.
He was taken to the Utah Valley Regional Medical Centre on Wednesday.
The celebrity news website TMZ said Coleman’s wife, Shannon Price, made the decision to pull his life support.