Because you like Sam Weir in Freaks and Geeks
Shrek is a nasty-on-the-surface ogre with a heart of gold and an earful of wax. See them in Shrek.
Stranded on Mars, Mark Watney is armed with quick wits, an electronic diary, disco music, and an undying resolve to make it back. See them in The Martian.
Alison DiLaurentis believes you're always better off with a really good lie. See them in Pretty Little Liars.
Nick Fury is an enigmatic, manipulative, and eye-patched director of the Avengers Initiative. See them in Marvel Cinematic Universe.
A daring conman, Flynn Rider is so charismatic that you might not mind when he steals from you. See them in Tangled.
It doesn't matter how noble or brave he is. Jon Snow is a bastard, and people don't let him forget it. See them in Game of Thrones.
Applejack's practicality complements her caring nature. She is the loyalest of friends and the most dependable of ponies. See them in My Little Pony.
Driven, resentful, and ruthless, Mello is an emotional powder keg. It's only a matter of time before he explodes. See them in Death Note.
Tarzan is walking the line between human and animal. Good thing he has excellent balance. See them in Tarzan.
Steven Universe is an excitable youth who likes junk food and trying to save the world. See them in Steven Universe.
Diana Prince is using a truth-telling lasso and super-strength to make Earth a little more like Paradise. See them in DC Extended Universe.