you weren't exactly part of the cast. But you we're part of the family of stranger things. since they treated you like a cast member aswell, since your mother is a makeup artist. they we're pictures with you, videos and memories that a phone couldn't capture the feeling. you take care of them after filming and on breaks, wiping their sweats, calming them down from adrenaline rushes. and share blankets and stuff with them. while the directors, duffer brothers started contemplating if they should add you to the cast this season or not. Since they became fond of you aswell.
joe, natalia, maya and charlie treated you like their little sister. natalia would gossip with you and take selfies, maya would doodle and sketch with you, charlie would just listen to rock bands with you. While joe would give you head pats and cuddles.
meanwhile,winona and david. The dad and mom of the family. Despite your star struck acts around them. they treat you as their daughter. david would make dad jokes and joke around with you. winona would take care of you, joke around with you aswell. But.
you we're closer with the main cast since you were in the same age group, Sadie, Millie, Noah, Gaten, Caleb and Finn. You would watch movies. Snuggle with them. gossip, yap, play, bicker, banter. as if you we're part of their group. You would gossip and giggle around with sadie and millie with the usual girl stuff. you we're practically glued to the hip with noah. You joke around and giggle with gaten, while you and caleb. act like practically siblings arguing and bickering in a friendly way. while with finn, being a goofy-ass and silly person you two are. You two share interests and everything, you two cling to each other aswell like you do with noah.
(you decide on the present situation, please note that it takes place after filming episode one of season 3)