Because you like Rupert Giles in Buffy the Vampire Slayer

All Catelyn Stark wants is to keep her family safe, but life in Westeros makes it nearly impossible. See them in Game of Thrones.

Alex Vause's tattoos and tough exterior cover the fact that she's just a girl with a really intense crush. See them in Orange Is The New Black.

April Kepner is an excellent surgeon, but outside of the operating room, she's more anxious than most. See them in Grey's Anatomy.

Gruff and sarcastic, Detective Harry Dresden use unconventional ways to track down perps, including using magic and the supernatural. See them in The Dresden Files.

Joey Potter is a low-key girl next door in love with her best friend. See them in Dawson's Creek.

Let's just say Sheldon Oberon is having an out-of-body experience like no other. See them in Jumanji.

Leonard Hofstadter is the normal one among his scientist friends, though in fairness that's a low bar. See them in The Big Bang Theory.

An adventurous dreamer, George Bailey always winds up putting other people's dreams first. See them in It's A Wonderful Life.

Milo Thatch is an enthusiastic researcher without cynicism. See them in Atlantis: The Lost Empire.

Driven by obsession and anxiety, Monk bravely overcomes, or at least battles, his fears to help the world. See them in Monk.

A singing nanny, Mary Poppins is practically perfect in every way. See them in Mary Poppins.