Police officers discovered Sue-Patt's body after breaking down the door to his home in East London following concerned calls from his neighbours. His cause of death was not known, reported BBC News.
A spokesman for London's Metropolitan Police said, "Officers forced entry to a flat, and found the body of a man, aged in his 50s, inside the flat. He was pronounced dead at the scene. Next of kin have been informed... At this early stage, the death is not believed to be suspicious."
Sue-Patt is best known for playing school pupil Benny Green in children's TV series "Grange Hill".