Because you like Annie James in The Parent Trap

Arizona Robbins loves being a pediatric surgeon, and the cute orthopedic surgeon downstairs makes coming into work worth her while. See them in Grey's Anatomy.

A jealous woman is dangerous. A jealous assassin woman like Elle Driver is even more so. See them in Kill Bill vol. 1.

Andrew Glouberman is trying to make it through puberty with his sanity intact. See them in Big Mouth.

Haley Dunphy's interests include shopping, dating, and avoiding homework at all costs. See them in Modern Family.

Rose Tyler may have not done too well in school, but she's certainly holding her own in space. See them in Doctor Who.

Vivian Ward is a no-nonsense working girl with fairy-tale dreams. See them in Pretty Woman.

Frodo might have carried the ring, but Samwise Gamgee carried the ring bearer. See them in The Lord of the Rings.

Beneath Lena Duchannes' prickly exterior lurks a sensitive, compassionate soul. See them in Beautiful Creatures.

A machete-wielding mass-murderer, Jason Voorhees is a terrifying blank slate. See them in Friday the 13th.

Celine's a spontaneous Parisian college student enjoying the night of her life. See them in Before Sunrise.

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

Small in stature, Clara Oswald has a big appetite for adventure. See them in Doctor Who.