Gosta was a human woman, belonging to the Scyre group, and she fought alongside Phasma as one of her warriors on the world of Parnassos. She accompanied Phasma, along with Torben, Siv, Carr, Brendol Hux, and a trio of stormtroopers, on an assignment to return Hux to his vessel so he could request assistance. Gosta's mother passed away during her childhood. At just fourteen years old, she was the group's most youthful member.