One of ‘The Simpsons’ Greatest Villains Was Almost Voiced by James Earl Jones

Dr. Robert Underdunk Terwilliger, otherwise known as Sideshow Bob, first graced our screens in the Season 1 Simpsons episode “The Telltale Head.” Voiced by Kelsey Grammer of Cheers fame, Bob started out as Krusty the Clown’s sidekick, and later became Bart’s archenemy after Bart foiled his plan to frame Krusty for a crime he didn’t…