Because you like Walter Bishop in Fringe
Anya Jenkins has a real harsh bark to go with her demonic bite. See them in Buffy the Vampire Slayer.
Protecting his family's name and its power are more important to Tywin Lannister than anything or anyone. See them in Game of Thrones.
Macbeth was probably named "Most Likely to Kill His Rivals" in his senior yearbook. See them in Macbeth.
Faith has a chip on her shoulder and a stake in her hand to slay vampires in her town. See them in Buffy the Vampire Slayer.
A devoted butler, Alfred Pennyworth is both a fiercely protective guardian and a lethal gunman. See them in Gotham.
Green skin, pointy hat, evil cackle—this villain has it all! See them in The Wizard of Oz.
Victor Frankenstein can create life, so he's pretty awesome if he says so himself. See them in Frankenstein.
Though he may be blind, Chirrut Imwe sees the power of the force more than most. See them in Rogue One.
Davos Seaworth is steadfast, intelligent, and trustworthy, which are hard traits to find in a place like Westeros. See them in Game of Thrones.
This android may not have emotions, but Lt. Commander Data's curiosity about humanity is endless. See them 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.
White Witch's heart is as frozen as the land she rules. See them in The Chronicles of Narnia.