Chester "Snake Jailbird" Turley is the constantly recurring convict on The Simpsons. Even if he's not busy robbing poor Apu's Kwik-E-Mart, he's usually seen getting arrested for something during most of his scenes.
Chief Wiggum: Help! Help us! They stole our uniforms guns and tazers!
Snake: (in a police uniform) Ohhhhh, Fry piggy. (charges tazer)
Chief Wiggum: No, no -- no don't -- aargh! Aargh! A little to the left... aah, that's the stuff.
Use a pen, Sideshow Bob!Snake