Because you like Susanna Kaysen in Girl, Interrupted

Helena is a mentally unstable, childish, and completely merciless. And most of all, she's an unstoppable killer. See them in Orphan Black.

Nina Sayer finally landed the role of prima ballerina, but as tension ramps up in rehearsal, she starts losing her mind. See them in Black Swan.

Quirky teen Carly Shay is the director of her own life story. See them in iCarly.

Alyssa Foley is a blunt and crass teenage runaway. See them in The End of the F World.

Juliet Capulet falls head over heels for her rival family's resident sweet talker, Romeo. See them in Romeo & Juliet.

Beautiful and artistic, Aria Montgomery follows her own path. See them in Pretty Little Liars.

Jackie Burkhart is a privileged princess with a healthy dose of self-confidence. See them in That '70s Show.

Paulie Bleeker is shy, sweet, and super into orange tic-tacs. See them in Juno.

Mrs. Lovett is the proud purveyor of the worst, and most grisly, pies in London. See them in Sweeney Todd: The Demon Barber of Fleet Street.

Jessica Rabbit isn't bad. She's just drawn that way. See them in Who Framed Roger Rabbit.

The party never really ends with Penny Lane, a rock-worshipping groupie who is refreshingly self-aware and free-spirited. See them in Almost Famous.

The biggest lesson from this inspiring teacher? Carpe diem. See them in Dead Poets Society.