@Mario32 said:

Who's the girl with the black hair standing next to Mitch in the season 5 finale? She's wearing a red Cobra Kai t-shirt. You see her when Terry is talking after he gets exposed.

Is this person on this poster? Or is she just a person always in the background shots?

https://thekaratekid.fandom.com/wiki/Cobra_Kai_(Season_5)?file=CK_S5_Live_and_Badass-Poster.jpg

She's definitely not in that picture. Like I said she's standing next to Mitch in the season 5 finale in the scene where Terry is trying to get the Cobra Kai students to say "No mercy" after everyone sees the video of him confessing to Tory that he paid off the referee to make sure that Cobra Kai won. She has shoulder length black hair and is wearing a red Cobra Kai t-shirt. Unfortunately there isn't a name on the t-shirt. I think she's one of those unnamed Cobra Kai students.