Because you like Rupert Giles in Buffy the Vampire Slayer
Leonard "Bones" McCoy is passionate, moral, and ready to stitch you back together. See them in Star Trek.
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.
Honest, true, and just, Ned Stark is a good man. Unfortunately, those traits are not assets in Westerosi politics. See them in Game of Thrones.
Joe West is overprotective and secretive when his children are involved. See them in DC Extended Universe.
Bree Van De Kamp likes her whiskey's neat, her napkins pressed, and her guns loaded. See them in Desperate Housewives.
David Nolan is a noble fairy tale prince with the heart of a hero, regardless of whether he can remember his past or not. See them in Once Upon a Time.
K-2SO is a blunt and sarcastic reprogrammed Imperial droid who is always up for an adventure. See them in Rogue One.
Claudia may look young, but she is a wise and philosophical vampire, knowing of the world and the darker nature of man. See them in Interview with the Vampire: The Vampire Chronicles.
Davos Seaworth is steadfast, intelligent, and trustworthy, which are hard traits to find in a place like Westeros. See them in Game of Thrones.
Jorah Mormont is loyal to his queen. And he's quite in love with her as well. See them in Game of Thrones.
A Silurian lizard woman, Madame Vastra has a penchant for puzzles and interspecies romance. See them in Doctor Who.