Because you like Greg Heffley in Diary of a Wimpy Kid

Beca Mitchell fancies herself an edgy loner, but it turns out being part of a group can be aca-amazing. See them in Pitch Perfect.

An agile and powerful swordswoman, Saber is a dignified warrior down to her bones. See them in Fate/Stay Night.

Marty McFly is a skateboarder, aspiring rock star, and reluctant time-traveler. See them in Back to the Future.

After surviving consecutive fights-to-the-death (damn you, President Snow!), Katniss Everdeen is thrust to the front lines of a real war. See them in The Hunger Games .

An escaped convict on a mission, Sirius Black is brooding, brave, and reckless. See them in Harry Potter Series.

Charles Xavier is a telepath who believes mutants and humans are both good at heart and can live in harmony. See them in X-Men Series.

Annie Walker can bake a beautiful cupcake, but everything else in her life is a mess. See them in Bridesmaids.

Steven Universe is an excitable youth who likes junk food and trying to save the world. See them in Steven Universe.

His murderous megalomania aside, Loki is quite charming. Just don't mention his strapping older brother; he's a tad jealous. See them in Marvel Cinematic Universe.

When dealing with a half-demon partner and a world of violence, Kagome Higurashi has plenty of chances for her true courage to shine. See them in Inuyasha.

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

Whatever Sakura Haruno lacks in power, she makes up for in intelligence and bravery. See them in Naruto.