Because you like Grover in Sesame Street

On the outside, Gwen seems meek and calm. But she has an inner core of steel. See them in Merlin.

A neurotic people pleaser, Tom Wambsgans is both ambitious and spineless. See them in Succession.

Frank Ginsberg is the number one Proust scholar in the world, but he recently failed at committing suicide. See them in Little Miss Sunshine.

Connor Walsh is arrogant enough to think he's the smartest guy in the room, and quick-witted enough to prove that he is. See them in How to Get Away with Murder.

The Grinch's heart is just too small to appreciate Christmas. See them in Dr. Seuss' How the Grinch Stole Christmas.

D.J. Tanner is a rebellious teen who wishes her lame dad would butt out of her personal life. See them in Full House.

How lucky are we that Arthur Curry, the King of Atlantis, hasn't taken over the surface world? Very! See them in DC Extended Universe.

Samantha Jones is a try-sexual who'll try anything once. See them in Sex and the City.

With each reboot, Janet progresses more and becomes capable of human emotions. See them in The Good Place.

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.

Rogue's touch is literally deadly, and she's trying to learn from the older mutants how to manager her powers. See them in X-Men Series.