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

Winn Schott is just your friendly neighborhood superhero support system. See them in Supergirl.

Manipulative, conniving, and ruthless, Mr. Gold is enigmatic no matter what world he's in. See them in Once Upon a Time.

R2-D2 has been in the galaxy saving business for decades. Not bad for somebody whose vocabulary is limited to "beep-boop." See them in Star Wars Series.

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

Protecting his family's name and its power are more important to Tywin Lannister than anything or anyone. See them in Game of Thrones.

Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.

Turanga Leela is the daughter of two mutants who live in the sewers below New York City. See them in Futurama.

Drusilla's hobbies include dolls, music, and killing people. See them in Buffy the Vampire Slayer.

A reclusive introvert, Liz Sherman has a temper that's literally lethal. See them in Hellboy.

People make more sense to the hyper-logical Temperance Brennan after they're dead. See them in Bones.

Cosette is an idealistic woman whose innocence stands in contrast to her harsh childhood. See them in Les Miserables.

A stylish agent, Agent J would rather improvise than play by the rules. See them in Men in Black.