Because you like Sam Vimes in Discworld

Anger-filled, merciless, and tortured, Kylo Ren is always at war—with the Rebel Alliance, and with himself. See them in Star Wars Series.

Mabel Pines loves sparkles, animals, friendship, and fun. See them in Gravity Falls.

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

Most kids hope for a car for their 16th birthday, but Mia Thermopolis' present is a country to rule. See them in The Princess Diaries.

Penelope Garcia is the smartest ex-con turned FBI tech, but her fashion never fails to raise eyebrows. See them in Criminal Minds.

Ethical but anxious, Chidi Anagonye approaches life like a problem to be solved. See them in The Good Place.

Bedside manner is for chumps, not the brilliant Dr. Gregory House. See them in House M.D..

Just because he rules Hades, doesn't mean he can't be fun! See them in Hercules.

Luke Skywalker always wanted to leave home, but he didn't expect that it would be as part of a quest to rescue a princess and save the galaxy. See them in Star Wars Series.

He tells you everything you need to know: "I. Am. Groot." See them in Marvel Cinematic Universe.

Toph is a tenacious earthbender full of spirit and spunk and hates when people try to baby her because she's blind. See them in Avatar: The Last Airbender.

A brilliant "extractor," Dom Cobb has spent the past few years running from the authorities and his inner demons. See them in Inception.