Because you like Gregor Samsa in The Metamorphosis

Helena is a mentally unstable, childish, and completely merciless. And most of all, she's an unstoppable killer. See them in Orphan Black.

Villanelle is a hired assassin who loves committing murder as much as she loves dressing up in fancy pink ballgowns. See them in Killing Eve.

An obsessive schoolgirl, Yuno has two sides to her personality, and both are equally unnerving. See them in The Future Diary.

The Terminator is an emotionless killing machine who won't stop until he's changed the future. See them in The Terminator.

John Locke is an eerily calm, confident believer in the magic of the island that gave him his legs back. See them in Lost.

Amy Santiago likes following the rules a little too much. See them in Brooklyn Nine-Nine.

Marie Antoinette may be a fun-loving queen who has it all, but her husband doesn't know how to have sex, and an angry mob wants to cut off her head. See them in Marie Antoinette.

For Jack Pearson, the best thing about having triplets is giving three times the love. See them in This Is Us.

Sookie St. James is a klutzy and perfectionist chef who's always there for her friends. See them in Gilmore Girls.

Arizona Robbins loves being a pediatric surgeon, and the cute orthopedic surgeon downstairs makes coming into work worth her while. See them in Grey's Anatomy.