Because you like Deandra "Dee" Reynolds in It's Always Sunny in Philadelphia

A Silurian lizard woman, Madame Vastra has a penchant for puzzles and interspecies romance. See them in Doctor Who.

As the unit chief of the FBI's Behavioral Analysis Unit, Aaron Hotchner is dead serious about avenging dead people. See them in Criminal Minds.

Stubborn, impulsive, and fun-loving, Hallie Parker is not afraid to devise some schemes to bring her family together. See them in The Parent Trap.

Lazy and cynical‚ Bernard Black is the ultimate curmudgeon. See them in Black Books.

Beware! Anton Chigurh carries a coin with him, which he forces his victims to flip to decide whether they will live or die. See them in No Country for Old Men.

This barber doesn't cut hair. Sweeney Todd sends his clients down a chute to be baked into his partner-in-crime's pies. See them in Sweeney Todd: The Demon Barber of Fleet Street.

Morticia Addams hates anything bright and cheery and loves all things ghoulish, ghastly, and violent. See them in The Addams Family.

While his twin tries to save lives, Millions Knives does the best to end them. See them in Trigun.

Patrick Verona is a bad boy who's after a tough girl. See them in 10 Things I Hate About You.

Tiffany Maxwell wishes people would stop reminding her about her dead husband. See them in Silver Linings Playbook.

Harrison Wells is a brilliant scientist full of secrets. See them in DC Extended Universe.