Because you like Geordi La Forge in Star Trek: The Next Generation

Neal Cassidy is a charming former thief with a heroic side. See them in Once Upon a Time.

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

Though she has the normal insecurities of a 15-year-old, Aurora is both courageous and empathetic. See them in Maleficent.

Tifa Lockhart is part mother hen, part martial arts bad-ass. See them in Final Fantasy Series.

Wheatley's got an endless supply of bad ideas that he wants to share. See them in Portal Series.

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

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.