Because you like Xander Harris in Buffy the Vampire Slayer
Mario is a plumber who wears a ridiculous outfit, eats weird looking mushrooms, and fits himself inside your pipes so he can save a princess. See them in Super Mario Bros..
Don't worry about this forensic scientist offing you unless you're a serial killer yourself. (You're not, right? Just checking.) See them in Dexter.
A tough tomboy with a protective streak, Maximum Ride is a human-bird hybrid. See them in Maximum Ride.
A girl who grew up on stories, Meggie Folchart is as loyal and intrepid as one of her fictional heroines. See them in Inkheart.
All the world's a stage, and Missy Piggy's never one to give up the spotlight. See them in The Muppet Movie.
Red doesn't like to explain herself. She wants her work to do the talking. See them in Transistor.
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.
Dante Alighieri is a crusader fighting his way to absolution. See them in Dante's Inferno.
Konata Izumi has a live-now, worry-later view of the world. See them in Lucky Star.
Juno MacGuff is hoping sarcasm will get her through the stress of teenage life. And also, teenage pregnancy. See them in Juno.
Gollum is slimy and seething with hatred, the last person you would want to meet in a dark cave. See them in The Lord of the Rings.