Because you like Lt. Commander Data in Star Trek: The Next Generation

A gifted detective, Rust Cohle is as dark and twisty as any murderer he chases. See them in True Detective Season 1.

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

Samwell Tarly is a scholar, not a fighter. But that's not good for an aspiring member of the Night's Watch. See them in Game of Thrones.

A devoted butler, Alfred Pennyworth is both a fiercely protective guardian and a lethal gunman. See them in Gotham.

Arwen has to choose between a life of loneliness or love and inevitible death, both rather unfortunate options. See them in The Lord of the Rings.

Sarcastic and always complaining, C3PO is a droid that despite his quirks you always want by your side. See them in Star Wars Series.

K-2SO is a blunt and sarcastic reprogrammed Imperial droid who is always up for an adventure. See them in Rogue One.

Extremely violent and loyal, Sandor Clegane is called the Hound for a reason. See them in Game of Thrones.

This mathematical genius doesn't have time for small talk; Alan Turing needs to break Enigma, the Nazi's cipher machine. See them in The Imitation Game.

You won't like him when Bruce Banner is angry. See them in Marvel Cinematic Universe.

Milo Thatch is an enthusiastic researcher without cynicism. See them in Atlantis: The Lost Empire.

Although she is underestimated, Lagertha never fails to prove her worth as both a warrior and a mother. See them in Vikings.