LeVar Burton (b. 1957) is best known for his roles as Kunta Kinte on Roots and Geordi La Forge on Star Trek: The Next Generation.
He appeared in the 1979 special The Muppets Go Hollywood dancing with Janice. He was also one of several celebrities who appeared in I Love Liberty, a special that also featured the Muppets.
Burton is also well-known as the host of the popular children's show Reading Rainbow. Kermit and Kevin Clash have both made guest appearances on the show.
He was nominated for the show and performer in a children's series at the 2005 Daytime Emmys, among others. At that particular Emmy red carpet, he was interviewed by Kermit and Miss Piggy for The Tony Danza Show, commenting that Tony's lack of nomination: "that is a travesty of a sham of a shame of an injustice, of an absolute abomination." Kermit's reply? "That is exactly what we say!" (YouTube)