Because you like Gaston in Beauty and the Beast
A monstrous pirate captain, Davy Jones is quite literally heartless. See them in Pirates of the Caribbean: the Curse of the Black Pearl.
Marge Simpson is a mostly happy housewife and subscriber to Sponge and Vacuum Magazine. See them in The Simpsons.
Kilgrave is a domineering, abusive boyfriend. Then, add in the power of mind control. See them in Marvel Cinematic Universe.
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.
The Genie is the perfect buddy, granting every wish we might have and keeping life good-spirited. See them in Aladdin.
Waylon Smithers would do anything for his boss, and would love to do a few things *to* him. See them in The Simpsons.
Cady Heron is the new girl in town who's also new to the world of high school, period. See them in Mean Girls.
Michael Kelso gets by on his good looks and his openhearted nature. See them in That '70s Show.
Anger is a cantankerous hothead whose job is to get others riled up. See them in Inside Out.
Anya Jenkins has a real harsh bark to go with her demonic bite. See them in Buffy the Vampire Slayer.