Because you like Nyota Uhura in Star Trek
This android may not have emotions, but Lt. Commander Data's curiosity about humanity is endless. See them in Star Trek: The Next Generation.
Part archaeologist, part philosopher, part politician, Jean-Luc Picard is an unashamed intellectual who runs a tight ship. See them in Star Trek: The Next Generation.
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.
Despite the war-torn world around him, Mal Reynolds still holds onto the shred of hope that life can be more than just living another day. See them in Firefly.
Hoban Washburne shows you can be a hotshot space pilot *and* play with dinosaurs. See them in Firefly.
Xander Harris' life motto: laugh in the face of danger and then hide until it goes away. See them in Buffy the Vampire Slayer.
Emma Frost's superpower: transforming her body into an unbreakable diamond. See them in X-Men Series.
Though she has the normal insecurities of a 15-year-old, Aurora is both courageous and empathetic. See them in Maleficent.
James Gordon happens to be the one guy in Gotham City with proper morals who doesn't also run around in a cape. See them in DC Extended Universe.
Anya Jenkins has a real harsh bark to go with her demonic bite. See them in Buffy the Vampire Slayer.
A powerful priestess, Melisandre is shrouded in mystery and lots of red. See them in Game of Thrones.
Don't tell anyone Kate Austen was under arrest when the plane crashed. See them in Lost.