Because you like Optimus Prime in Transformers

Christine Daae has been secretely taking lessons from a phantom musician. It sounded less creepy in her head. See them in The Phantom of the Opera.

Christian is a romantic who for some reason won't stop singing everything he feels. See them in Moulin Rouge.

Let's just say Sheldon Oberon is having an out-of-body experience like no other. See them in Jumanji.

A contemptuous aristocrat, Violet Crawley is unafraid to exert her authority and voice her opinions, no matter how harsh they are. See them in Downton Abbey.

Susan Pevensie is sensible, practical, and fiercely protective of those she loves. See them in The Chronicles of Narnia.

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.

Shaggy might be a bit of a slacker, but his heart and his stomach are usually in the right place. See them in Scooby-Doo.

You don't teach a class called "How To Get Away With Murder" without knowing a thing or two about getting away with things. See them in How to Get Away with Murder.

Cosette is an idealistic woman whose innocence stands in contrast to her harsh childhood. See them in Les Miserables.

Cosima Niehaus loves exploring the unknown. Even her own DNA is a puzzle, waiting to be unlocked. See them in Orphan Black.

Howard Wolowitz is an engineer whose serious mommy issues somehow haven't dimmed his confidence. See them in The Big Bang Theory.