Sideshow Mel replaced Sideshow Bob after his incarceration as Krusty the Klown's assistant.  Sideshow Mel, born Melvin Van Horne,  is voiced by Dan Castellaneta.

Sideshow Mel Quotes

Sideshow Mel: Bleh! There's cheese in this sandwich! Surely you know I'm lactose intolerant!
Bart: Sorry.
Sideshow Mel: Sorry? Do you know how sick this is going to make me? Come stand next to the bathroom door, I want to yell at you some more.

Groundskeeper Willie: Come on ya pansies, I've seen fiercer fights in parliament
Sideshow Mel: What is this, prime minister's question time?

The Simpsons Quotes

Marge: Tomorrow night, it might be nice to go out for dinner.
Homer: Tomorrow night? Friday? Pork chop night? Marge! We haven't missed pork chop night since the great pig scare in '87!

Wow, now I see why they call you Miss Hoover. You must have been vacuuming for an hour.

Bart