Because you like Minerva McGonagall in Harry Potter Series

Although she's the queen of killer comebacks and one-liners, Janis Ian is honest about her feelings and cares deeply about her friends. See them in Mean Girls.

More than any of her friends, Fluttershy is willing to see the best in everyone, a trait that has won over many enemies. See them in My Little Pony.

Mark Sloan is the best plastic surgeon and biggest playboy the hospital's ever seen. See them in Grey's Anatomy.

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.

Pengiuns, turtles, and all things scientific is where Sam's expertise lies. Girls are uncharted territory, but Sam is trying to branch out. See them in Atypical.

Glenn Rhee somehow never loses his enthusiastic spirit – even in the middle of a zombie apocalypse. See them in The Walking Dead.

Spencer Reid's super-smarts helps catch killers, and his social awkwardness endears co-workers. See them in Criminal Minds.

Tina Cohen-Chang is a shy loner who becomes a fierce performer on stage. See them in Glee.

They say prison changes you, and Piper Chapman is figuring that out the hard way. See them in Orange Is The New Black.

Taking down villains, standing up to sexism, and pulling off a bright-red lipstick are all in a day's work for Agent Peggy Carter. See them in Marvel Cinematic Universe.

Brian Griffin is the most scholarly member of the family—when he's not drunk on martinis. See them in Family Guy.

Serena van der Woodsen is a wild child. Too wild, her friends and family might argue. See them in Gossip Girl.