Because you like Marsellus Wallace in Pulp Fiction
Socialite-turned-runaway-turned-waitress, Rachel Green is the legendary story of riches to rags, trying to work her way up again with the help of her friends. See them in Friends.
Puss In Boots is a suave, honorable ladies man/cat who's not above playing cute to get you to let down your guard. See them in Shrek 2.
It's easy for Brian O'Conner to fake his way into the world of extreme racing because he's been popping cars since his teenage years. See them in The Fast and the Furious.
Dominic Toretto lives his life "a quarter mile at a time", and he burns through those miles faster than anyone. See them in The Fast and the Furious.
With his own ship, Peter Quill calls his own shots, and gets to fly from planet to planet blasting '70s pop hits and picking up alien chicks. See them in Marvel Cinematic Universe.
Eren Jaeger will erase the Titans from this world until not a single one remains. See them in Attack on Titan.
As a scaring Assistant, Mike Wazowski frightens children to collect their screams to be used as a power supply for the city. See them in Monsters, Inc..
Sheldon Cooper is brilliant in every way except, well, interacting with any human being. See them in The Big Bang Theory.
A baker turned reluctant fighter, Peeta Mellark can charm his way out of just about any situation. See them in The Hunger Games .
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.
Academics weren't his strong suit. Luckily, Jesse Pinkman's street smarts are a cut above the rest. See them in Breaking Bad.
Daenerys Targaryen will take what is hers with fire and blood. Thankfully, she has some dragons by her side. See them in Game of Thrones.