Because you like Reginald Barclay in Star Trek: The Next Generation

Remy Hadley is a closed book—a cynical, super-smart closed book. See them in House M.D..

James Wilson is a compassionate doctor who willingly plays the sidekick. See them in House M.D..

Anya Jenkins has a real harsh bark to go with her demonic bite. See them in Buffy the Vampire Slayer.

Emma Frost's superpower: transforming her body into an unbreakable diamond. See them in X-Men Series.

Stanley Barber is a loveable goofball with impeccable (if eccentric) fashion sense, unique music taste, and a wealth of strange but useful knowledge. See them in I Am Not Okay With This.

A blood-thirsty warrior on the battlefield, Ragnar Lothbrok is a dedicated family-man at home. See them in Vikings.

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

Morpheus is wise enough to see into the bones of the world. See them in The Matrix.

Ianto Jones' withdrawn nature conceals his emotional pain.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

Jail hasn't broken Andy Dufresne's spirit, but will his spirit help break him out of jail? See them in The Shawshank Redemption.

Victor Frankenstein can create life, so he's pretty awesome if he says so himself. See them in Frankenstein.

With each reboot, Janet progresses more and becomes capable of human emotions. See them in The Good Place.