What is mad dog on good times?

Mad Dog is a recurring character on the 1970s sitcom Good Times. He is portrayed by actor Ted Ross. Mad Dog is a rough and tough gang leader who is often involved in criminal activity and clashes with the lead character, J.J. Evans. Despite his rough exterior, Mad Dog often shows a softer side and is sometimes willing to help the Evans family in times of need. He is known for his trademark phrase, "Dy-no-mite!", which is also often used by J.J. The character of Mad Dog appeared in a total of six episodes throughout the show's run.