Because you like Allison Cameron in House M.D.

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.

Dorothy Gale is a down-home Kansas girl in a bizarre fantasy land with beautiful red shoes. See them in The Wizard of Oz.

Jane Smith is a stone-cold killer, but you would never know it from looking at her. See them in Mr. & Mrs. Smith.

Ofelia is face-to-face with the deadliest creatures of the underworld and completely unafraid. See them in Pan's Labryinth.

Beth March is the glue that holds her family together. See them in Little Women.

Kathy is a natural caretaker who strives to find hope in even the darkest of times. See them in Never Let Me Go.

Merry Brandybuck is a troublemaking hobbit with a brave streak that some might call foolhardy. See them in The Lord of the Rings.

A singing nanny, Mary Poppins is practically perfect in every way. See them in Mary Poppins.

Charlie Bucket may be down-on-his-luck, but his spirits are always sky high. See them in Charlie and the Chocolate Factory.

Not even a closed door will deter this eternal optimist. See them in Frozen.

Marge Simpson is a mostly happy housewife and subscriber to Sponge and Vacuum Magazine. See them in The Simpsons.

A no-nonsense pro, Agent K has dedicated his whole life to his job. See them in Men in Black.