His full name is Carl Carlson.
Leonard.
Spuckler.
Mackleberry
His full name is Gil Gunderson as can be read on the simpsons character list on wikipedia...
Flanders
Carl Orff : Gassenhauer
His last name is Leonard.
Prince.
Nahasapeemapetilon
Leonard.
Spuckler.
Zzyzwicz
Starbeam
Mackleberry
McKenna
Cody Robert is his first name and Simpson his last name :)
His name is Nelson Muntz!