Because you like Kim Kelly in Freaks and Geeks
In charge of stocking the office's supply of cigarettes and liquor, Joan Holloway could run the whole company if they would let her. See them in Mad Men.
With each reboot, Janet progresses more and becomes capable of human emotions. See them in The Good Place.
Suzy Bishop is only 12, but her withering stare and withdrawn personality are enough to make anyone wilt. See them in Moonrise Kingdom.
Marshall Eriksen is a lawyer in love who is enjoying life. See them in How I Met Your Mother.
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.
Jane Smith is a stone-cold killer, but you would never know it from looking at her. See them in Mr. & Mrs. Smith.
Maria Rambeau is a tough-as-nails Air Force pilot who is also a loving single mom. See them in Marvel Cinematic Universe.
Chuck Bartowski is a sweet, laid-back electronics store/top secret government employee. See them in Chuck.
What Troy Barnes lacks in common sense, he makes up for with heart. See them in Community.
Jo Wilson is an accomplished doctor who's getting over her past. See them in Grey's Anatomy.