Because you like Hoban Washburne in Firefly

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

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.

His name is Inigo Montoya and whoever killed his father should be prepared to die. See them in The Princess Bride.

There's more to this sweet, caring landlady than meets the eye. See them in Sherlock.

Point the fun-loving Pippin Took towards second breakfast, and he's one happy hobbit. See them in The Lord of the Rings.

Blunt but anxious, Gretchen Ross bonds most easily with those who have lived tough lives like she has. See them in Donnie Darko.

A Silurian lizard woman, Madame Vastra has a penchant for puzzles and interspecies romance. See them in Doctor Who.

Jillian Holtzmann's madcap mind is always whirring and she will transform anything into one of her machines. See them in Ghostbusters (2016).

Rory Williams is a caring companion whose specialty is looking after others. See them in Doctor Who.

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