Because you like Pinky in Pinky and the Brain
Michaelangelo is an above-ground crime-fighter by night, and a pizza-eating, sewer-dwelling mutant ninja turtle by day. See them in Teenage Mutant Ninja Turtles.
James Gordon happens to be the one guy in Gotham City with proper morals who doesn't also run around in a cape. See them in DC Extended Universe.
Relentlessly cheery Ned Flanders enjoys a nice piece of bread with water on the side for dipping See them in The Simpsons.
Ted Logan wants to party on, but if doesn't get an A+ on his history presentation, he'll flunk out and be sent to a military school in Alaska. See them in Bill & Ted's Excellent Adventure.
Emma Frost's superpower: transforming her body into an unbreakable diamond. See them in X-Men Series.
Aldo Raine is in the killing Nazi business. And as he says, business is a-boomin'. See them in Inglourious Basterds.
Moe Szyslak is the crabby owner of the grimiest bar in Springfield. See them in The Simpsons.
Prideful and psychotic tendencies combine to make Dr. Eggman a dangerous and villain who will squash anyone in his path. See them in Sonic the Hedgehog.
Dewey Finn will rock you. He feels rock and roll in his blood and guts. See them in School of Rock.
Andrew Glouberman is trying to make it through puberty with his sanity intact. See them in Big Mouth.
Peter Venkman's "research" projects are designed to get undergraduate students to sleep with him. Though it turns out he can bust ghosts. See them in Ghostbusters.