Because you like Nymphadora Tonks in Harry Potter Series

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

A responsible kid, Hugo Cabret is still capable of flights of fancy. See them in Hugo.

A powerful mob boss, Vito Corleone is always making offers people can't refuse. See them in The Godfather.

Fun and feisty on the outside, Meredith Grey is dark and twisty on the inside. See them in Grey's Anatomy.

Sandy Olsen is out of her head, hopelessly devoted to Danny. See them in Grease.

Like her trusty sword, Arya Stark is tiny but vicious. See them in Game of Thrones.

Firo Prochainezo is swept up in a world of mysterious women, alchemists, and rumors of a wine that makes it drinkers immortal. See them in Baccano!.

Not a great influence with her classmates, this 13-year-old "cool girl" likes to shoplift, chug alcohol, and snort crushed pills. See them in thirteen.

Optimus Prime is a shapeshifting sentient robot leading a team of robots to stop evil from taking over. See them in Transformers.

Marv is a brutish but principled thug who'd be right at home on an ancient battlefield. See them in Sin City.

Hannah Baker is a buoyant spirit broken by the cruelties of high school. See them in Thirteen Reasons Why .

A suave proprietor of an upscale nightclub and gambling den, Rick Blaine is dealing with World War II and a broken heart. See them in Casablanca.