Because you like Leonard Hofstadter in The Big Bang Theory

Duck, girl, and legend: Ahiru's identities confuse even herself at times, and she often wonders which of them is truly her. See them in Princess Tutu.

A tough tomboy with a protective streak, Maximum Ride is a human-bird hybrid. See them in Maximum Ride.

Clary Fray's philosophy: dive into the supernatural underworld first and ask questions later. See them in City of Bones.

Edward Kenway can be reckless and greedy, but he's learning that his ancient ancestry carries a noble burden. See them in Assassin's Creed Series.

Ezio Auditore Da Firenze is a little short-tempered, a lot fun-loving. See them in Assassin's Creed Series.

This high school queen bee has everything, including a genius-level IQ—a fact Lydia Martin keeps hidden to maintain her image. See them in Teen Wolf.

Mike Lane is magnetic, beefy, and street-smart, but how long can he keep up with the red-light scene? See them in Magic Mike.

Ava may just be the perfect woman. So long as she can pass a Turing test. See them in Ex Machina.

Mikasa Ackerman is a near-perfect soldier who won't break her stone-faced expression whether she's killing foes or protecting loved ones. See them in Attack on Titan.

Holden Caulfield is convinced that the whole adult world is full of phonies. See them in The Catcher in the Rye.

John Bender's interests include marijuana, fighting, and breaking the rules. See them in The Breakfast Club.

For Sly Cooper, stealing isn't just about the haul. It's also about the journey. See them in Sly Cooper.