 Sideshow Bob is voiced by _"Frasier" (1993)_ (qv) star  Kelsey Grammer (qv). In "Brother from Another Series", Cecil,  Sideshow Bobs brother, is featured, and is voiced by  David Hyde Pierce (qv), who plays Frasiers brother, Niles, in  _"Frasier" (1993)_ (qv). Cecil also mentions Maris, Niless  never