Because you like Brain in Pinky and the Brain

Scooby-Doo always keeps his priorities in order: eat snacks first, solve mysteries later. See them in Scooby-Doo.

A majestic ruler, Mufasa is respected throughout the animal kingdom. See them in The Lion King.

A stylish agent, Agent J would rather improvise than play by the rules. See them in Men in Black.

A short-tempered guy, Bowser is determined to wreak havoc on the Mushroom Kingdom. See them in Super Mario Bros..

Moe Szyslak is the crabby owner of the grimiest bar in Springfield. See them in The Simpsons.

Eugene H. Krabs is a greedy restaurant owner who won't let a dime out of the reach of his claws. See them in SpongeBob SquarePants.

Donatello might come off as a tad nerdy, but don't let his geekiness fool you. He's a trained ninja and a skilled fighter. See them in Teenage Mutant Ninja Turtles.

Macbeth was probably named "Most Likely to Kill His Rivals" in his senior yearbook. See them in Macbeth.

For Wreck It Ralph, it's not easy being the bad guy. Especially when you've been designed to destroy but really desire love. See them in Wreck-It Ralph.

The Ice King is lonely and looking for a princess to sweep him off his feet. See them in Adventure Time.

Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.

Jessica Rabbit isn't bad. She's just drawn that way. See them in Who Framed Roger Rabbit.