Because you like Jack Callaghan in While You Were Sleeping

Small in stature, Clara Oswald has a big appetite for adventure. See them in Doctor Who.

Even the smallest person can change the course of the world, if he's brave enough. See them in The Lord of the Rings.

In a rag-tag group of kids determined to take down the imperialistic Fire Lord, Katara is the glue that holds them together. See them in Avatar: The Last Airbender.

Unaware of the fact that he's a toy and made of plastic, Buzz Lightyear is a spaceman on a mission fully of snappy catch phrases. See them in Toy Story.

Bella Swan thinks of it as her job to help her parents and protect her friends, even though it often ends up the other way around. See them in Twilight.

A 100-plus-year-old who looks like a dreamy teenager, Edward Cullen warns girls to avoid him, which makes them want him even more. See them in Twilight.

A genetic experiment engineered to be the perfect assassin, Agent 47 is cold, professional, and lethal. See them in Hitman.

It's hard enough fighting a war. But it's worse for Commander Shepard, knowing no matter how hard you try, you can't save them all. See them in Mass Effect.

An assassin with supernatural gifts, Corvo Attano is the last guy you should frame for murder. See them in Dishonored.

Though a painful tragedy leaves her closed off and distant, Rosalina is still an endlessly kind princess. See them in Super Mario Galaxy .

A great galactic bounty hunter, Samus Aran is not as good at expressing emotions. See them in Metroid.