Because you like Sybil Crawley in Downton Abbey
Wanting more out of life, Pam Beesly has a job she isn't crazy about and is engaged to a guy she's not sure is "The One." See them in The Office.
A bumbling hobbit, Bilbo Baggins is becoming a part of something much larger than himself as he embarks on a quest. See them in The Hobbit: An Unexpected Journey.
You won't like him when Bruce Banner is angry. See them in Marvel Cinematic Universe.
Don't ask Rosa Diaz, a Brooklyn detective, to lighten up. Actually, to be safe, don't ask her to do anything! See them in Brooklyn Nine-Nine.
He may seem like a charismatic leader, but Bellamy also has a ruthless, self-serving streak See them in The 100.
He may forget his homework, lose his toad, and fall off brooms, but Neville Longbottom can also single-handedly destroy villains. See them in Harry Potter Series.
Violet Parr is an angsty teen would love to become even more invisible than her superpowers allow. See them in The Incredibles.
Basil Hallward is dominated, soul, brain, and power by Dorian. See them in Dorian Gray.