Because you like Gomez Addams in The Addams Family
Moe Szyslak is the crabby owner of the grimiest bar in Springfield. See them in The Simpsons.
This master marksman may be a villain, but Deadshot's motives aren't quite as selfish as they seem. See them in DC Extended Universe.
Linda Belcher doesn't prescribe to what society deems as "normal." She narrates her life through song, much to the alarm of everyone nearby. See them in Bob's Burgers.
A bloodsucker, Carlisle Cullen is actually more likely to give you a blood infusion. See them in Twilight.
Philip J. Fry accidentally cryogenically froze himself for a millennium. See them in Futurama.
There's more to this sweet, caring landlady than meets the eye. See them in Sherlock.
Others see him as the town nutcase, but Flint Lockwood knows his inventions will change the world someday. See them in Cloudy with a Chance of Meatballs.
Matilda Wormwood is so smart, she taught herself how to be psychic. See them in Matilda.
Darcy Lewis is a razor-sharp scientist studying things that science can't explain. See them in Thor.
Egon Spengler prefers collecting spores, molds, and fungus to interacting with people. See them in Ghostbusters.
Corpse Bride's dreams were taken from her. But now - now she's stolen them from someone else. See them in Corpse Bride.