Because you like Rachel Jansen in Forgetting Sarah Marshall

Michonne 's light on conversation and deadly with a blade. See them in The Walking Dead.

Charlie Kelmeckis is a wallflower who's starting to blossom into something more. See them in The Perks of Being a Wallflower.

If you hang out with Bender in cool dive bars in 31st century New York, make sure you're on his "Do Not Kill" list. See them in Futurama.

Stewie Griffin is just your average evil-genius, talking, sociopathic baby. See them in Family Guy.

Everyone Barney Stinson knows is getting married or pregnant. But he's just getting more awesome. See them in How I Met Your Mother.

Po is a clumsy, friendly panda who likes to take it easy. But now he's expected to save the world? See them in Kung Fu Panda.

Hiro is a free-spirit and remarkable genius who loves bot fighting and problem-solving. See them in Big Hero 6.

Nemo is a small fish in a vast ocean, but he dreams of seeing it all. See them in Finding Nemo.

If you need her, Lisa Simpson will be in her room with her saxophone and a good book. See them in The Simpsons.

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.

The star of every school production since kindergarten and the most popular girl of East High, Sharpay Evans usually gets her way. See them in High School Musical.

A benevolent madman with a blue box, The Doctor is traveling through time and space to heal the wounds of the universe. See them in Doctor Who.