Because you like Edith Crawley in Downton Abbey
John Watson is haunted by his past (who isn't) but he's starting to branch out with some help from a world class detective. See them in Sherlock.
Eddie Brock is a big-hearted investigative journalist who is going through the world's weirdest identity crisis. See them in Venom.
When a half-breed breaks the rules, John Constantine deports them straight back to hell. He's trying to buy his way into heaven. See them in Constantine.
Marshall Eriksen is a lawyer in love who is enjoying life. See them in How I Met Your Mother.
Brian Griffin is the most scholarly member of the family—when he's not drunk on martinis. See them in Family Guy.
Eugene H. Krabs is a greedy restaurant owner who won't let a dime out of the reach of his claws. See them in SpongeBob SquarePants.
Blaine Anderson is a put-together prep school boy with the voice of an angel. See them in Glee.
Tiffany Maxwell wishes people would stop reminding her about her dead husband. See them in Silver Linings Playbook.
Clementine Kruczynski thinks that too many guys think she's a concept, or she completes them, or she's gonna make them alive. See them in Eternal Sunshine of the Spotless Mind.
Veronica Sawyer thinks that if you were happy every day of your life you wouldn't be a human being, you'd be a game-show host. See them in Heathers.