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

A no-nonsense pro, Agent K has dedicated his whole life to his job. See them in Men in Black.

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

Sydney Bristow is a kick-ass double agent on a mission for revenge. See them in Alias.

Maurice Moss is a dedicated IT guy who even talks like a computer. See them in The IT Crowd.

It's impossible to say whether Winifred Burkle is cuter than she is smart, or vice versa. See them in Angel.

Benoit Blanc is Sherlock with Southern charm, and a mysterious benefactor. See them in Knives Out.

Both a noble district attorney and a psychopathic villain, Harvey Dent proves some men really can have it all. See them in DC Extended Universe.

Ahsoka Tano hopes to be a very powerful and knowledgeable Jedi one day. See them in The Clone Wars.

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

Khan Noonien Singh is super strong, super smart, and out for revenge. He always seems to be two steps ahead of his enemies. See them in Star Trek Into Darkness.

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

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