Because you like CK Dexter Haven in The Philadelphia Story
Princess Fiona is a damsel who doesn't need saving, but she's cursed with an embarrassing secret. See them in Shrek.
Rose Tyler may have not done too well in school, but she's certainly holding her own in space. See them in Doctor Who.
Jamal Malik came from humble beginnings in an Indian slub filled with street gangs, but he is destined for bigger things. See them in Slumdog Millionaire.
The destroyer, Drax lives for one thing and one thing only: revenge. See them in Marvel Cinematic Universe.
Dr. Gordon Freeman is a brilliant physicist is a quiet hero. And given all the violent aliens, he better be. See them in Half-Life.
Once a handsome prince, the Beast is now a grumpy, furry, monster. It's hard to pinpoint which mammal he resembles the most. See them in Beauty and the Beast.
This suave con-man doesn't just want to become rich. Danny Ocean wants to rip off the guy who stole his wife in the biggest Vegas con. See them in Ocean's Eleven.
When his friend goes missing, Lucas Sinclair is ready to fight. All of the Dungeons and Dragons is really paying off. See them in Stranger Things.
The ever-cheerful Tonks can change her appearance at will, but she can't seem to get rid of her clumsiness. See them in Harry Potter Series.
Effie Trinket is utterly enamored with all things fashion, make-up, and style. See them in The Hunger Games .
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.
It's easy to see why Poe Dameron would side with the rebellion: he's bad at taking orders, likes to show off, and is committed to the cause. See them in Star Wars Series.