Because you like Ellen Ripley in Alien

A formerly timid caterpillar, Kurt Hummel is transforming into a glamorous, confident butterfly. See them in Glee.

An all-business doc , Miranda Bailey dispenses tough love to the interns she trains. Emphasis on "tough." See them in Grey's Anatomy.

John Tyree has survived heavy gunfire and aggressive enemy soldiers. But can he handle a girl? See them in Dear John.

Assistant to the demanding editor-in-chief, Emily Charlton comes across as cold and insensitive. But who can blame her? See them in The Devil Wears Prada.

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

Gretchen Wieners is the gossip queen in her clique. See them in Mean Girls.

Shy and nerdy, Gabriella Montez moved to Albuquerque and quickly became the toast of East High and a darling of the stage. See them in High School Musical.

Mako is carrying the world on his shoulders. See them in The Legend of Korra.

With most of the people that Sango loved now gone, the only thing she wants is to kill the demon who destroyed her village. See them in Inuyasha.

Although Theon Greyjoy is treated well, he's still essentially a hostage. And that isn't so easy for him to forgive. See them in Game of Thrones.

Fun and feisty on the outside, Meredith Grey is dark and twisty on the inside. See them in Grey's Anatomy.

This high school queen bee has everything, including a genius-level IQ—a fact Lydia Martin keeps hidden to maintain her image. See them in Teen Wolf.