Karli Junge-Smith

Karli is the daughter of Frau Junge and the sister of Basil, younger by three years. She is in the Class of 2016, making her two years younger than most of the lead characters. She is often at odds with Patrick, due to her extreme "liberal youth" attitude. However, the two eventually become friends. It is later revealed that Mr. Smith is her biological father.

In the show
Karli first appears in PSATs, when Dave flirts with her to make Sally jealous. However, he quickly develops real feelings for her, and the two of them date. They break up when Karli turns out to be a lesbian.