Crossword puzzle clue "one who's often not himself"

"___ should keep himself to himself": "Treasure Island"

"Man will do many things to get himself loved, he will do all things to get himself ___": Mark Twain

One who's often not himself?

"The Simpsons" character who often refers to himself in the third person

Toon who often congratulates himself with "You've done it again!"

What Bugs Bunny often calls himself

Creature Calvin often imagines himself to be

Event that often provides occasion for Kanye West to make a fool of himself: Abbr.