Because you like Tommy Pickles in Rugrats
Wanderer is a Soul, a parasite sent into a host to take over their body, extracting information from them and colonizing their species. See them in The Host.
An aristocrat-turned-tomb-raider, Lara Croft does her best thinking while plunging off cliffs. See them in Lara Croft: Tomb Raider.
World domination and Superman's demise are next on Lex Luthor's to-do list. See them in DC Extended Universe.
Jim Hopper is a weary and beaten down police officer who numbs his pain through beer, pills, and cigarettes. See them in Stranger Things.
High school is Hell, so Allison Reynolds spends her time giving herself tattoos with ballpoint pens and shaking dandruff out of her hair. See them in The Breakfast Club.
A great galactic bounty hunter, Samus Aran is not as good at expressing emotions. See them in Metroid.
Aldous Snow is a rock star who plays hard and parties harder. See them in Get Him to the Greek.
Lazy and cynical‚ Bernard Black is the ultimate curmudgeon. See them in Black Books.
Garnet is a Crystal Gem who'll protect her friends with her life. See them in Steven Universe.
Unaware of the fact that he's a toy and made of plastic, Buzz Lightyear is a spaceman on a mission fully of snappy catch phrases. See them in Toy Story.
The black sheep of his family, Rhett Butler grew up to have charm and to see things as they are. He just doesn't give a damn anymore. See them in Gone with the Wind.