Because you like Donna Noble in Doctor Who

Oscar Martinez is a national accountant in an office of weirdos. See them in The Office.

Sam Weir lives for the simple things in life: watching Saturday Night Live and reading comic books. See them in Freaks and Geeks.

Murph is inquisitive, compassionate, and stubborn, with a passion for science she shares with her dad. See them in Interstellar.

Dean Forester is just your friendly, neighborhood grocery bag boy. See them in Gilmore Girls.

Jackie Burkhart is a privileged princess with a healthy dose of self-confidence. See them in That '70s Show.

Emma Woodhouse knows what's best for everyone else. Just don't try to tell her what to do. See them in Emma.

CIA operative Carrie Mathison is on a self-assigned mission to follow a lead, whether it be the truth or just her delusions playing tricks. See them in Homeland.

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

A librarian and aspiring Egyptologist, Evie O'Connell would rather have her own adventures than just read about them. See them in The Mummy.

Headstrong and sarcastic, Max Mayfield is a force for awkward middle school boys to contend with. See them in Stranger Things.

Underneath his preening narcissist exterior, Schmidt is, well, still kind of a preening narcissist. But he has a good heart too. See them in New Girl.