What is was michael blackson in lean on me?

Michael Blackson, also known as "The African King of Comedy," was not in the movie "Lean on Me." The film, released in 1989, starred Morgan Freeman as high school principal Joe Clark, who attempts to turn around a struggling New Jersey high school. While Michael Blackson has acted in a number of other films and TV shows, including "Meet the Blacks" and "Next Friday," he did not appear in "Lean on Me."