Because you like Elmo in Sesame Street
A meticulous forensic scientist, Edward Nygma is insanely good at his job. Emphasis on the "insane" part. See them in Gotham.
Experiment 626 was designed for one thing: to destroy everything he touches. See them in Lilo & Stich.
Sue Sylvester has a win-at-all-costs philosophy, a bizarre fixation on a school singing club, and a fashion style that involves a red tracksuit. See them in Glee.
Izzie Stevens is a model-turned-med student who can do it all, even if people underestimate her. See them in Grey's Anatomy.
Boomerang is equally skilled at tossing boomerangs and tossing back beers. See them in DC Extended Universe.
Jane Smith is a stone-cold killer, but you would never know it from looking at her. See them in Mr. & Mrs. Smith.
You wouldn't know it by looking at her, but beneath Sheila Jackson's sweet, motherly exterior lies a sex addict. See them in Shameless.
The Genie is the perfect buddy, granting every wish we might have and keeping life good-spirited. See them in Aladdin.
Lily Aldrin is a flaky but supportive kindergarten teacher and painter. See them in How I Met Your Mother.
Freddie Freeman is a superhero aficionado with a dark sense of humor. See them in DC Extended Universe.
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.