Because you like Neal Cassidy in Once Upon a Time
Donna Carmichael is a free-spirited single mom and gracefully aging hippie. See them in Mamma Mia!.
Jughead Jones loves burgers, his friends, and philosophizing with his unique brand of wisdom. See them in Archie Comics.
Drusilla's hobbies include dolls, music, and killing people. See them in Buffy the Vampire Slayer.
Born and raised in the darkness, Bane is determined to have the city totally under his control so that he can demolish it. See them in DC Extended Universe.
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.
Bob Belcher runs a lonely burger joint, and even though his wit is lost on his eccentric family, he doesn't let that faze him. See them in Bob's Burgers.
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.
A karate master/rocket scientist/squirrel, Sandy Cheeks is the only one who can clean up the other resident's messes in Bikini Bottom. See them in SpongeBob SquarePants.
Waylon Smithers would do anything for his boss, and would love to do a few things *to* him. See them in The Simpsons.
Michael Kelso gets by on his good looks and his openhearted nature. See them in That '70s Show.
Despite the war-torn world around him, Mal Reynolds still holds onto the shred of hope that life can be more than just living another day. See them in Firefly.