Because you like Big Bird in Sesame Street
Boomerang is equally skilled at tossing boomerangs and tossing back beers. See them in DC Extended Universe.
Nandor is a relentless vampire who never admits he's wrong, loves glitter, and can't use a tablet. See them in What We Do In The Shadows.
Gomez Addams fills his days with ghoulish and ghastly forms of recreation, enjoying life and all its pleasures to the fullest. See them in The Addams Family.
An adventurous dreamer, George Bailey always winds up putting other people's dreams first. See them in It's A Wonderful Life.
Although Theon Greyjoy is treated well, he's still essentially a hostage. And that isn't so easy for him to forgive. See them in Game of Thrones.
Sideshow Bob is a bitter ex-performer who was forced to do inhumane stunts for slapstick comedy. Now he's exacting revenge on his former boss, a clown. See them in The Simpsons.
A loyal assistant to Nelson and Murdock, Karen Page has a way of finding trouble. See them in Marvel Cinematic Universe.
The Grinch's heart is just too small to appreciate Christmas. See them in Dr. Seuss' How the Grinch Stole Christmas.
Wheatley's got an endless supply of bad ideas that he wants to share. See them in Portal Series.
His nickname of 'Zero' says a lot about what other people think of him, but he's finally standing up for himself. See them in Holes.
Peter Pevensie shows as much courage as a child king as he did under The Blitz of London. See them in The Chronicles of Narnia.