Because you like The Man with No Name in The Good, the Bad and the Ugly
A meticulous forensic scientist, Edward Nygma is insanely good at his job. Emphasis on the "insane" part. See them in Gotham.
Jade Jade Harley might not be the best at reading social cues, but her bravery and selflessness means she's a great friend to have. See them in Homestuck.
Mitchell Pritchett prefers to have a place for everything and everything in its place. See them in Modern Family.
As high-strung as she is talented, Rachel Berry both marches and sings to the beat of her own drum. See them in Glee.
Driven by guilt and rage, Kratos is less a man and more an unstoppable avatar of anger and hate. See them in God of War.
A loyal assistant to Nelson and Murdock, Karen Page has a way of finding trouble. See them in Marvel Cinematic Universe.
Gordie Lachance never had any friends later on like the ones he had when I was twelve. See them in Stand By Me.
Glenn Rhee somehow never loses his enthusiastic spirit – even in the middle of a zombie apocalypse. See them in The Walking Dead.
Obi-Wan Kenobi is a sage Jedi who doesn't need to say much to teach you a galaxy's worth of wisdom. See them in Star Wars Series.
Will Turner is an earnest, lovelorn blacksmith's assistant with an adventurous spirit. See them in Pirates of the Caribbean: the Curse of the Black Pearl.