Sideshow Bob is a recurring character in the animated television series The Simpsons. He is voiced by Kelsey Grammer (pictured) and first appeared briefly in the episode "The Telltale Head". Bob is a self-proclaimed genius who is a graduate of Yale, a member of the Republican Party, and a champion of high culture. He began his career as a sidekick on Krusty the Clown's television show, but after enduring constant abuse, Bob attempted to frame his employer for armed robbery in "Krusty Gets Busted". The plan was foiled by Bart Simpson, and Sideshow Bob was sent to prison. Bob made his second major appearance in season three's "Black Widower". In each appearance thereafter, Bob has assumed the role on The Simpsons of an evil genius. Episodes in which he is a central character typically involve Sideshow Bob being released from prison and executing an elaborate revenge plan, usually foiled by Bart and Lisa. His plans often involve murder and destruction, usually targeted at Bart or, less often, Krusty, though these plans often involve targeting the entire Simpson family. Sideshow Bob shares some personality traits of Grammer's character Frasier Crane from the sitcoms Cheers and Frasier, and has been described as "Frasier pickled in arsenic". As of 2012, Bob has had speaking appearances in thirteen episodes and been featured in eleven; the most recent of the latter, "The Bob Next Door", aired during the twenty-first season.