Because you like Lexie Grey in Grey's Anatomy

Be careful around Marie Laveau. There's no one more vengeful than a double-crossed voodoo queen. See them in American Horror Story.

You won't like him when Bruce Banner is angry. See them in Marvel Cinematic Universe.

A sadistic sociopath, Lil Z is helping make the City of God slum a Hell on Earth. See them in City of God.

Kathryn Merteuil may be a vain sociopath, but you won't be able to look away. See them in Cruel Intentions.

A kind and funny valedictorian, Gwen Stacy likes to make out with Spider-man when her homework's done. See them in Marvel Cinematic Universe.

Adrian Agreste is a charming rich teenage boy, model, and hero in a catsuit. See them in Miraculous: Tales of Ladybug & Cat Noir.

Wanderer is a Soul, a parasite sent into a host to take over their body, extracting information from them and colonizing their species. See them in The Host.

Ted is a cursing, smoking, drinking teddy bear who's anything but cuddly. See them in Ted.

Brian Griffin is the most scholarly member of the family—when he's not drunk on martinis. See them in Family Guy.

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.

Barry Egan has too many anger issues to list here. See them in Punch Drunk Love.

Louise Belcher might be just a kid, but she can manipulate just about anyone with a pulse. All in the name of fun, of course. See them in Bob's Burgers.