Because you like Leonard Hofstadter in The Big Bang Theory

Cher Horowitz may have a problem with hubris, but she looks utterly fabulous while learning a lesson about the dangers of meddling. See them in Clueless.

Carl Gallagher is a budding psychopath fascinated with rule breaking. See them in Shameless.

A lone wolf with a confrontational streak, Bigby wants to dedicate his life to doing good. See them in The Wolf Among Us.

They say they saved Adam Jensen by turning him into a cyborg, but he's not sure saved is the right word. See them in Deus Ex Series.

Dee Reynolds is selfish, narcissistic, and a target of extremely cruel ridicule. See them in It's Always Sunny in Philadelphia .

With a unique ability to empathize with killers, Will Graham helps society but his sanity pays the price. See them in Hannibal.

Princess-turned-General Leia Organa is a sharp, fearless royal who gets herself into trouble and fights her way out of it. See them in Star Wars Series.

The irrepressible Lucy Ricardo has never met a challenge she couldn't scheme her way into or out of. See them in I Love Lucy.

It's hard to tell if Dean Winchester cares more about saving the world or his 1967 Chevy Impala. See them in Supernatural.

Once a lonely hat maker, Sophie Hatter is now cleaning goo from bathtubs and cooking breakfast for the grumpiest wizard in all the land. See them in Howl's Moving Castle.

Light Yagami has a plan to make a better world, and morals won't stop him. See them in Death Note.

A resourceful ship systems engineer, Isaac Clarke does his best to batttle the infection spreading across space. See them in Dead Space.