Because you like Ben Wyatt in Parks and Recreation
Working as a captain in the American Expeditionary Forces and a spy for British Intelligence, Steve Trevor wants to end World War I once and for all. See them in DC Extended Universe.
Henry Mills is an idealistic young boy with the heart of the truest believer. See them in Once Upon a Time.
Connor Walsh is arrogant enough to think he's the smartest guy in the room, and quick-witted enough to prove that he is. See them in How to Get Away with Murder.
Reckless, vulgar, loud-mouthed: that's what makes Amethyst so awesome. See them in Steven Universe.
Remy Hadley is a closed book—a cynical, super-smart closed book. See them in House M.D..
Jackie Burkhart is a privileged princess with a healthy dose of self-confidence. See them in That '70s Show.
David Nolan is a noble fairy tale prince with the heart of a hero, regardless of whether he can remember his past or not. See them in Once Upon a Time.
Margaery Tyrell is one of the most adept and charming liars there is. See them in Game of Thrones.
If the awesome Andie Walsh is from the wrong side of the tracks, we don't want to be right. See them in Pretty in Pink.
Sometimes being a supportive girlfriend like Ophelia doesn't work out too well. See them in Hamlet.