Because you like Don Quixote in Don Quixote
Ichigo Momomiya is a bubbly student by day, magical cat-powered superhero by night. See them in Tokyo Mew Mew.
Morticia Addams hates anything bright and cheery and loves all things ghoulish, ghastly, and violent. See them in The Addams Family.
Don't tell anyone Kate Austen was under arrest when the plane crashed. See them in Lost.
An escaped convict on a mission, Sirius Black is brooding, brave, and reckless. See them in Harry Potter Series.
If you hang out with Bender in cool dive bars in 31st century New York, make sure you're on his "Do Not Kill" list. See them in Futurama.
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.
When the going gets tough, Rick Grimes gets tougher. It's a very useful trait when the world goes to hell. See them in The Walking Dead.
Megamind is searching for purpose in a supervillain life without a superhero to fight. See them in Megamind.
Dory is more than a little forgetful, but she'll always remember to have your back. See them in Finding Nemo.
Sarah Ashburn lives life by the book and has trouble getting along with anyone who doesn't do the same. See them in The Heat.
Patrick Verona is a bad boy who's after a tough girl. See them in 10 Things I Hate About You.
A daring conman, Flynn Rider is so charismatic that you might not mind when he steals from you. See them in Tangled.