Luigi Vendetta is an Italian mafia boy from East Mellowbrook. He's the youngest of seven brothers. In "Luigi Vendetta", Kick Buttowski asks for his help to stop Brad from harassing him. Luigi sings an opera song that drives Brad to madness. He could've also helped Mouth offscreen. Luigi is voiced by Rico Rodriguez.
- The opera that he sings is to the tune of "Les Toreadors", by Georges Bizet.
These are the lyrics to the opera Luigi sings:
Big brothers shouldn't bully or degrade,
be sugar sweet,
Do not partake in sibling rivalries,
cherish, your family!
Big brothers ought to be role models so,
be kind to your young bro.