Sideshow Bob

Hello, Bart.Sideshow Bob's catchphrase. Robert Underdunk "Bob" Terwilliger Jr., more commonly recognized by his stage name, Sideshow Bob, is a self-proclaimed genius, member of the Republican Party, champion of high culture, former children's entertainer-turned-criminal mastermind, and Bart Simpson's arch-nemesis and most dangerous enemy. He makes his first appearance in "The Telltale Head." He is voiced by Kelsey Grammer. Robert Terwilliger began his career as "Sideshow Bob", a non-speaking sidekick on Krusty the...

Full name

Robert Underdunck Terwilliger Jr.

Debut

The Telltale Head