Because you like Ford Prefect in The Hitchhiker's Guide to the Galaxy
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.
Due to his eagerness to hang with his kids and general goofiness, Phil Dunphy comes across as the fourth child of his family. See them in Modern Family.
Fun and feisty on the outside, Meredith Grey is dark and twisty on the inside. See them in Grey's Anatomy.
A 100-plus-year-old who looks like a dreamy teenager, Edward Cullen warns girls to avoid him, which makes them want him even more. See them in Twilight.
Jenko was top dog in high school. Now he's bottom of the pack in the police academy. See them in 21 Jump Street.
Tracy Turnblad's got rhythm, and she's determined to share her dance moves with the world. See them in Hairspray.
An aloof punk rock goddess, Nana Osaki has a surprisingly big heart. See them in Nana.
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.
Clary Fray's philosophy: dive into the supernatural underworld first and ask questions later. See them in City of Bones.
Whether he's fighting or flirting, Jace Wayland is all swagger. See them in City of Bones.
Emily Fields has been very guarded, careful of whom she trusts and reveals her secrets to. See them in Pretty Little Liars.