Because you like Conor "Cosmo" Lalor in Sing Street

Nick Carraway is the perfect observer: always there for the events, but never too involved. See them in The Great Gatsby.

A stylish agent, Agent J would rather improvise than play by the rules. See them in Men in Black.

Robin Scherbatsky is a former teen pop star who loves dogs and is scared of relationships. See them in How I Met Your Mother.

Greg Heffley will be famous someday, but now he's stuck in class with morons. See them in Diary of a Wimpy Kid.

Edmund Pevensie isn't a bad person, but he did sell his siblings out for a tin of Turkish Delight. See them in The Chronicles of Narnia.

Luke Danes will serve you coffee and always be there for you to help out. See them in Gilmore Girls.

Matilda Wormwood is so smart, she taught herself how to be psychic. See them in Matilda.

A passionate paleontologist with interests no one seems to share, Ross Geller tries to find love despite his past of abandonment and an awkward personality. See them in Friends.

Marshall Eriksen is a lawyer in love who is enjoying life. See them in How I Met Your Mother.

The Hastings family is old and powerful, and Spencer will do anything to continue excelling. See them in Pretty Little Liars.

Oliver Tate is extremely articulate but hopelessly awkward. That's not a recipe for teenage happiness. See them in Submarine.

Brian Griffin is the most scholarly member of the family—when he's not drunk on martinis. See them in Family Guy.