Because you like Hikaru Sulu in Star Trek
Jo Wilson is an accomplished doctor who's getting over her past. See them in Grey's Anatomy.
Samantha Jones is a try-sexual who'll try anything once. See them in Sex and the City.
Claire Temple is a dedicated nurse providing secret care to New York's vigilantes. See them in Marvel Cinematic Universe.
Harrison Wells is a brilliant scientist full of secrets. See them in DC Extended Universe.
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.
Michael Bluth is the only sane person in a family of eccentrics. At least, that's how he thinks of himself. See them in Arrested Development.
Brandon Teena is an adventurous young man with the courage to be himself. See them in Boys Don't Cry.
As a doctor-in-training, John Dorian should have his head in the game. But most of the time, it's in the clouds. See them in Scrubs.
Chuck Bartowski is a sweet, laid-back electronics store/top secret government employee. See them in Chuck.
Cyclops shoots lasers out of his eyes, destroying anything in his line of sight. See them in X-Men Series.
Wendy Testaburger is a born leader who is not afraid to stand up to the other fourth graders for what she believes in. See them in South Park.