Because you like Mortimer Brewster in Arsenic and Old Lace

Arwen has to choose between a life of loneliness or love and inevitible death, both rather unfortunate options. See them in The Lord of the Rings.

Belle is an adventurous, intelligent fairy tale maiden who strives to see the best in everyone. See them in Once Upon a Time.

Rose Tyler may have not done too well in school, but she's certainly holding her own in space. See them in Doctor Who.

Driven and straightforward with high-technology parts, EVE was sent to Earth to see if it is habitable. See them in WALL-E.

Stubborn, impulsive, and fun-loving, Hallie Parker is not afraid to devise some schemes to bring her family together. See them in The Parent Trap.

For now Lindsay Weir is a geek, but who knows? Maybe she fits in better with the freaks. See them in Freaks and Geeks.

The chronically bizarre Dwight Schrute is the world’s most dependable assistant to the regional manager. See them in The Office.

Sarcastic and always complaining, C3PO is a droid that despite his quirks you always want by your side. See them in Star Wars Series.

Charles Boyle is the human equivalent of a puppy, only slightly less adorable. See them in Brooklyn Nine-Nine.

The destroyer, Drax lives for one thing and one thing only: revenge. See them in Marvel Cinematic Universe.

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.