Because you like Martha Jones in Doctor Who
Eponine is a scrappy street urchin with a bad case of unrequited love. See them in Les Miserables.
Holly Golightly spends so much time trying to be other people's dream girl, she doesn't really know what kind of girl she actually is. See them in Breakfast at Tiffany's.
A tough tomboy with a protective streak, Maximum Ride is a human-bird hybrid. See them in Maximum Ride.
The personification of America is all about superheroes, hamburgers, and spreading democracy and justice. See them in Axis Powers Hetalia.
Greg Heffley will be famous someday, but now he's stuck in class with morons. See them in Diary of a Wimpy Kid.
A doting grandfather, Edwin Hoover also has a heroin addiction and a penchant for swearing. See them in Little Miss Sunshine.
This wizard is never late, nor is he early. Gandalf arrives precisely when he means to. See them in The Lord of the Rings.
Joe Goldberg works at a local bookstore and charms most girls sock's off. He is also a serial killer, but no one is perfect! See them in You.
For Lee Everett, every day is now just another struggle to collect supplies, find other survivors, and stay alive. See them in The Walking Dead (Video Game).
Lois Lane's journalistic success is the result of her tenacity. She will doggedly pursue her leads until discovering the information she needs. See them in DC Extended Universe.
Just call Jeff Lebowski The Dude. Or His Dudeness, Duder, or El Duderino if you're not into that whole brevity thing. See them in The Big Lebowski.
David Wooderson has clocked in hundreds of hours cruising around town looking for fun. See them in Dazed and Confused.