Grammer will reprise his role as the homicidal "Sideshow Bob," while Baldwin -- who previously played himself -- will voice a new character in the season premiere of the Fox TV primetime cartoon, Zap2it.com reported Thursday.
Other guests appearing this season with Bart, Homer, Marge, Lisa and Maggie include William H. Macy, Lily Tomlin and finally, Patty and Selma's No. 1 man, Richard Dean "MacGyver" Anderson.
DISCUSS AND COMMENT ON THIS STORY Reality TV World now offers Facebook Comments on our stories. To post a comment, log into Facebook and then 'Add' your comment. To report spam or abuse, click the 'X' in the upper right corner of the comment box.