Because you like Spamton in Deltarune

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

Rose Tyler may have not done too well in school, but she's certainly holding her own in space. See them in Doctor Who.

Megamind is searching for purpose in a supervillain life without a superhero to fight. See them in Megamind.

This barber doesn't cut hair. Sweeney Todd sends his clients down a chute to be baked into his partner-in-crime's pies. See them in Sweeney Todd: The Demon Barber of Fleet Street.

Rayman is a fearless hero who flies into action with a propeller on his head and a smile on his face. See them in Rayman.

Count Olaf is a traveling actor, except he can't act and his homicidal tendencies make finding work pretty difficult. See them in Lemony Snicket's A Series of Unfortunate Events.

Blunt, petty, neurotic, Larry David can never live and let live. See them in Curb Your Enthusiasm.

N'Jadaka is a righteous man with a violent agenda. See them in Marvel Cinematic Universe.

A few millennia in the mortal realm have caused DEATH to be quite enamored of life. See them in Discworld.

A company man who has never done a day of work, Creed Bratton pursues sketchy extracurricular activities that keep him busy. See them in The Office.

How is angel Aziraphale supposed to stop the apocalypse when Hell's forces misplaced the Antichrist somewhere? See them in Good Omens: The Nice and Accurate Prophecies of Agnes Nutter, Witch.