Because you like Minerva McGonagall in Harry Potter Series

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

Charlie is a Type A theater director dealing with something out of his control: a painful divorce. See them in Marriage Story.

Raj Koothrappali is an astrophysicist who sees stars when he feebly tries to chat up women. See them in The Big Bang Theory.

Matt Flamhaff is not too concerned about being part of the popular crowd. Too bad his best friend is. See them in 13 Going on 30 .

Bucky Barnes used to be a good-hearted American soldier. Now he's the cold-hearted Winter Soldier. See them in Marvel Cinematic Universe.

Although life in a post-apocalyptic world is far from easy, Julie Grigio maintains her sense of humor. See them in Warm Bodies.

Derek Shepherd is a talented and passionate neurosurgeon. Some people call him McDreamy. See them in Grey's Anatomy.

Humble, caring, and protective, Scott McCall tries to make the best of his newfound status as a werewolf. See them in Teen Wolf.

Being beautiful and rich doesn't guarantee happiness for Cheryl Blossom. See them in Riverdale.

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

People make more sense to the hyper-logical Temperance Brennan after they're dead. See them in Bones.

Often the one to deliver bad news to the families of victims, Jennifer Jareau isn't sure this is what she signed up for. See them in Criminal Minds.