Because you like Pam Beesly in The Office
A few millennia in the mortal realm have caused DEATH to be quite enamored of life. See them in Discworld.
Just because Dracula wants to suck your blood doesn't mean he's not a gentleman. See them in Dracula.
The "runt" of his biker gang, Tetsuo Shima grapples with a perpetual inferiority complex. See them in Akira.
V is a violent anarchist with literally nothing left to lose. But, he might have a point. See them in V for Vendetta.
A great galactic bounty hunter, Samus Aran is not as good at expressing emotions. See them in Metroid.
Clank is the quintessential rational, intelligent robot sidekick. See them in Ratchet & Clank.
Melinda May is a woman of few words and many talents. Most of them martial. See them in Marvel Cinematic Universe.
What Ron Weasley lacks in motivation and book smarts, he makes up for in loyalty and street smarts. See them in Harry Potter Series.
If Lisbeth Salander can hurt a bastard who deserves it by digging up stuff about him, she feels good. See them in The Girl with the Dragon Tattoo.
Although Borat has a curious mind, he has no filter, and some very out of date views on just about everything. See them in Borat: Cultural Learnings of America for Make Benefit Glorious Nation of Kazakhstan.
Alien insists on taking the party with him wherever he goes. And if you're lucky, you'll get to see his gun collection. See them in Spring Breakers.