Because you like The Creature in Frankenstein
A great galactic bounty hunter, Samus Aran is not as good at expressing emotions. See them in Metroid.
After figuring out how both the light and dark halves of his soul could co-exist, Jak is maturing into a real hero. See them in Jak and Daxter.
Chloe Decker's case should be open-and-shut. But something seems to be troubling her, something about Palmetto Street. See them in Lucifer.
After alien Haruko rides in on her Vespa, giant robots spouting from Naota Nandaba's forehead soon become the least of his worries. See them in FLCL.
Garnet is a Crystal Gem who'll protect her friends with her life. See them in Steven Universe.
Wendy Testaburger is a born leader who is not afraid to stand up to the other fourth graders for what she believes in. See them in South Park.
Intelligent Adele is soft spoken yet brimming with emotion. See them in Blue is the Warmest Color.
For Celty Sturluson, it's rather upsetting to be the only headless girl in a city filled with full-bodied humans. See them in Durarara!!.
After Otto Octavius' accident, he becomes fixated on finishing the reactor at any cost. See them in Marvel Cinematic Universe.
T'Challa is a regal superhero with the weight of the world (and particularly his nation) on his shoulders. See them in Marvel Cinematic Universe.
Emily Gilmore is the DAR chair, proud grandmother, and full of opinions. See them in Gilmore Girls.