Coconut Sid on the right.

Coconut Sid is a character in the film Do the Right Thing, portrayed by Frankie Faison. He hangs out with ML and Sweet Dick Willie in front of a red wall. The three of them serve as comic relief. 

When Radio Raheem is getting choked to death by the police, Sid is the first to notice and shouts at them: "Stop it! You're killing him! You're killing him!"

When ML goes to the Korean grocery store, Coconut Sid tells him to leave them alone, saying that they're alright.