Because you like Winry Rockbell in Fullmetal Alchemist
Leslie Knope can accomplish anything, literally anything, with a little grit and help from her office. See them in Parks and Recreation.
When the going gets tough, Rick Grimes gets tougher. It's a very useful trait when the world goes to hell. See them in The Walking Dead.
Seth is short-tempered, crude, and terrible at school, but hopefully there's nothing an epic party can't fix. See them in Superbad.
Beneath Arthur's brash demeanor lurks the heart of a compassionate future king destined to unite the five kingdoms. See them in Merlin.
Iris West is a barista and blogger determined to expose a secret. See them in DC Extended Universe.
When the Sorting Hat touched Draco Malfoy's head, it placed him in Slytherin, a house that has turned out more dark wizards than any other. See them in Harry Potter Series.
Bedside manner is for chumps, not the brilliant Dr. Gregory House. See them in House M.D..
A dreamy space cadet, Luna Lovegood has never met a conspiracy theory she didn't believe in. See them in Harry Potter Series.
Emma Woodhouse knows what's best for everyone else. Just don't try to tell her what to do. See them in Emma.
Winn Schott is just your friendly neighborhood superhero support system. See them in Supergirl.
Nicholas Angel is super-dedicated to his job as a police officer. Maybe a little too dedicated. See them in Hot Fuzz.