Because you like Marshall Eriksen in How I Met Your Mother

Noah Calhoun is lost without Allie, who seems to have moved on. See them in The Notebook.

Rarity has been dreaming of the day her designs will dazzle Canterlot. See them in My Little Pony.

Though bold and pure of heart, Utena Tenjou has a fairytale vision of the world that can make her oblivious to its darkness. See them in Revolutionary Girl Utena.

Juliet Starling is a cheerleader by day, gleefully unhinged zombie killer by night. See them in Lollipop Chainsaw.

A born psychopath, don't expect Michael Myers to understand the difference between right and wrong. See them in Halloween.

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.

Captain Spock is on a five-year mission exploring the final frontier and boldly going where no man has gone before. See them in Star Trek.

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 .

America Singer is a feisty, fiercely independent musician who places little value on the restrictive rules of her society. See them in The Selection .

It doesn't matter how noble or brave he is. Jon Snow is a bastard, and people don't let him forget it. See them in Game of Thrones.

Accessing more than 10 percent of your brain can do strange things to anyone, and Lucy is Exhibit A. See them in Lucy.

Lelouch vi Britannia is a high school student by day, masked destroyer of tyrannical empires by night. See them in Code Geass.