Because you like Rupert Giles in Buffy the Vampire Slayer

Amy Farrah Fowler deserves sainthood for putting up with Sheldon Cooper. See them in The Big Bang Theory.

Petyr Baelish's main assets? A sharp mind, deep pockets, and no scruples. See them in Game of Thrones.

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

Waylon Smithers would do anything for his boss, and would love to do a few things *to* him. See them in The Simpsons.

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

Although she is underestimated, Lagertha never fails to prove her worth as both a warrior and a mother. See them in Vikings.

Bodhi Rook is a defected pilot for the Galactic Empire dead set on destroying the Death Star. See them in Rogue One.

Turanga Leela is the daughter of two mutants who live in the sewers below New York City. See them in Futurama.

Caitlin Snow believes that burying herself in science is the best way to save the day or to mend a broken heart. See them in DC Extended Universe.

Fiery and adventurous, Amy Pond is the sort of woman you'd want by your side on a journey through time and space. See them in Doctor Who.

A blood-thirsty warrior on the battlefield, Ragnar Lothbrok is a dedicated family-man at home. See them in Vikings.

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.