Because you like Doogie Howser in Doogie Howser, M.D.

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.

Timid and a bit insecure, Amy Antsler has big dreams of activism and meeting new people. She's learning it's easier said than done. See them in Booksmart.

Sweet, reserved, and intellectual, Cordelia Foxx would do anything for her students. See them in American Horror Story.

Beloved by all, Lucy is the most corageous Pevensie. See them in The Chronicles of Narnia.

A Wakandan spy, Nakia is capable, caring, and just the right amount of stubborn. See them in Marvel Cinematic Universe.

Donna Pinciotti is strong, independent, and empathetic. No one messes with her. See them in That '70s Show.

Everything is fascinating to Octavia Blake who has been locked away for her entire life. See them in The 100.

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

Don't ask Rosa Diaz, a Brooklyn detective, to lighten up. Actually, to be safe, don't ask her to do anything! See them in Brooklyn Nine-Nine.

Louise Belcher might be just a kid, but she can manipulate just about anyone with a pulse. All in the name of fun, of course. See them in Bob's Burgers.

The ever-cheerful Tonks can change her appearance at will, but she can't seem to get rid of her clumsiness. See them in Harry Potter Series.