Because you like Piper Halliwell in Charmed

He's the great Black Star, and he's come to assassinate you. See them in Soul Eater.

The Kid doesn't talk. He just acts with determination. See them in Bastion.

A bookish know-it-all with a bossy streak, Hermione Granger always stands up for what she believes in. See them in Harry Potter Series.

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

Tyler Gage is going to have to step up soon on the dance floor. Otherwise, it's back to janitorial work. See them in Step Up.

An aristocrat-turned-tomb-raider, Lara Croft does her best thinking while plunging off cliffs. See them in Lara Croft: Tomb Raider.

Daxter is half otter, half weasel, all snark. See them in Jak and Daxter.

Arthur Dent is an incredibly normal man on an incredibly abnormal adventure. See them in The Hitchhiker's Guide to the Galaxy.

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

Wei Shen is an undercover cop on a mission for justice (or at least vengeance). See them in Sleeping Dogs.

Red doesn't like to explain herself. She wants her work to do the talking. See them in Transistor.

Whether it's a companion he’s failed or lingering guilt from the war, the Doctor can never truly let go of his past lives. See them in Doctor Who.