Because you like Mark Watney in The Martian
Edward Elric has a quick mind along with a quick temper. See them in Fullmetal Alchemist.
Margaery Tyrell is one of the most adept and charming liars there is. See them in Game of Thrones.
Michael Bluth is the only sane person in a family of eccentrics. At least, that's how he thinks of himself. See them in Arrested Development.
Turanga Leela is the daughter of two mutants who live in the sewers below New York City. See them in Futurama.
Edmund Pevensie isn't a bad person, but he did sell his siblings out for a tin of Turkish Delight. See them in The Chronicles of Narnia.
Ahsoka Tano hopes to be a very powerful and knowledgeable Jedi one day. See them in The Clone Wars.
Aslan represents everything good and just, he's just not super reliable. See them in The Chronicles of Narnia.
Just like half of L.A., Mia Dolan is working a dead end job until she hits the big screens. See them in La La Land.
Academics weren't his strong suit. Luckily, Jesse Pinkman's street smarts are a cut above the rest. See them in Breaking Bad.
James Wilson is a compassionate doctor who willingly plays the sidekick. See them in House M.D..
Patrick Verona is a bad boy who's after a tough girl. See them in 10 Things I Hate About You.