Because you like Marshall Eriksen in How I Met Your Mother

A bumbling hobbit, Bilbo Baggins is becoming a part of something much larger than himself as he embarks on a quest. See them in The Hobbit: An Unexpected Journey.

Linda Belcher doesn't prescribe to what society deems as "normal." She narrates her life through song, much to the alarm of everyone nearby. See them in Bob's Burgers.

Davos Seaworth is steadfast, intelligent, and trustworthy, which are hard traits to find in a place like Westeros. See them in Game of Thrones.

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

Britta Perry has never met a cause she couldn't passionately champion—at least for a little bit. See them in Community.

Jyn Erso is a rebellious criminal tasked with stealing the blueprint to the Death Star to find its fatal flaw before it destroys the planet. See them in Rogue One.

A compassionate medical student, Martha Jones has found a Doctor she can really look up to. See them in Doctor Who.

Boomerang is equally skilled at tossing boomerangs and tossing back beers. See them in DC Extended Universe.

Often the one to deliver bad news to the families of victims, Jennifer Jareau isn't sure this is what she signed up for. See them in Criminal Minds.

Greg Heffley will be famous someday, but now he's stuck in class with morons. See them in Diary of a Wimpy Kid.

Alfredo Linguini can whip up five star meals effortlessly. Just don't look under his hat. See them in Ratatouille.

With those dearest to him dead and no one to trust, Max Rockatansky is a slightly hysterical man alone on the run in a post-apocalyptic world. See them in Mad Max: Fury Road.