The actor - best known for playing Benny Green - was found dead on Friday (May 22) at his home in London. The cause of his death is currently unknown.
Police have confirmed that they are not treating Sue-Patt's death as suspicious at this stage.
They said in a statement: "At 12.42pm on Friday we were alerted to concerns for the welfare of a man in Walthamstow. At 1.44pm 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."
Having been discovered playing football, Sue-Patt launched his acting career with a four-year-long stint on Grange Hill, one of the longest-running drama series in British television.