Because you like The Master in Doctor Who
An inter-dimensional demon, Bill Cipher dreams of a more chaotic Gravity Falls. See them in Gravity Falls.
His name is Inigo Montoya and whoever killed his father should be prepared to die. See them in The Princess Bride.
Kara "Starbuck" Thrace will beat you in cards, drink you under the table, then fly circles around you in her fighter plane. See them in Battlestar Galactica.
Jillian Holtzmann's madcap mind is always whirring and she will transform anything into one of her machines. See them in Ghostbusters (2016).
A house elf, Dobby is loyal, compassionate, and yearning for freedom. See them in Harry Potter Series.
A sarcastic and nosy tomboy, Stephanie Tanner is understandably not crazy about being the middle child. See them in Full House.
Don't tell anyone Kate Austen was under arrest when the plane crashed. See them in Lost.
David Rossi may chase serial killers for a living, but he's more interested in what wine pairs well with tonight's parmigiana. See them in Criminal Minds.
On the outside, Gwen seems meek and calm. But she has an inner core of steel. See them in Merlin.
This lab mouse has one thing on his huge brain: trying to take over the world on a nightly basis. See them in Pinky and the Brain.
A powerful priestess, Melisandre is shrouded in mystery and lots of red. See them in Game of Thrones.