Because you like Nymphadora Tonks in Harry Potter Series

A brave "Young Wolf," Robb Stark has never lost a battle. See them in Game of Thrones.

Jasper Jordan is trying his best to make it through the night. See them in The 100.

Short on book smarts but long on compassion, this high school football player secretly has a soulful side. See them in Glee.

Although life in a post-apocalyptic world is far from easy, Julie Grigio maintains her sense of humor. See them in Warm Bodies.

Experiment 626 was designed for one thing: to destroy everything he touches. See them in Lilo & Stich.

Wendy Corduroy is the ultimate in cool in Gravity Falls. See them in Gravity Falls.

Billy Batson is a troublemaking teen grappling with a pretty weird superhero identity crisis See them in DC Extended Universe.

A compassionate medical student, Martha Jones has found a Doctor she can really look up to. See them in Doctor Who.

Stella Grant is an organized, orderly optimist living with a dangerous disease. See them in Five Feet Apart.

Merlin is half awkward teenager, half super-powerful wizard. He serves Prince Arthur of Camelot during the day and illegally learns magic at night. See them in Merlin.

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

On the outside, Gwen seems meek and calm. But she has an inner core of steel. See them in Merlin.