Because you like Donna Noble in Doctor Who

Ianto Jones' withdrawn nature conceals his emotional pain. See them in Torchwood.

Detective Alec Hardy doesn't let anyone get too close to him. See them in Broadchurch.

There's more to this sweet, caring landlady than meets the eye. See them in Sherlock.

Kilgrave is a domineering, abusive boyfriend. Then, add in the power of mind control. See them in Marvel Cinematic Universe.

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

Xander Harris' life motto: laugh in the face of danger and then hide until it goes away. See them in Buffy the Vampire Slayer.

Kate Beckett is a no-nonsense policewoman with a nerdy side. See them in Castle.

Henry Mills is an idealistic young boy with the heart of the truest believer. See them in Once Upon a Time.

A formerly righteous wizard, Saruman has been corrupted by the forces of evil. See them in The Lord of the Rings.

His name is Inigo Montoya and whoever killed his father should be prepared to die. See them in The Princess Bride.

Greg Lestrade is gruff, loyal, and quietly competent. See them in Sherlock.

Hoban Washburne shows you can be a hotshot space pilot *and* play with dinosaurs. See them in Firefly.