Haywood Nelson: Haywood Nelson. Actor: What's Happening!!. Haywood Nelson is best known for his role as Dwayne from the legendary TV show "What's Happening!!" His character Dwayne was a pretty-boy who is a slightly shy but friendly, down-to-earth teen, who was likeable and with his catch phrase, "Hey, HEY, Hey!" became a favorite memorable character. Haywood arguably became the first Black TV teenage sex symbol. He had a sweetness, a sense of...