The leader of the Doll Community, an independent self-governing group of dolls surviving in the irradiated Yellow Zone, Ullrid is very close to Littara, who she treats as a close confidant, and Suomi, who she treats as a younger sister. While she typically comes off as a calm and collected older sister, those close to her are aware of her self-doubts and deep underlying frustrations with herself. To deal with stress, Ullrid heavily uses stress relief toys. Due to her past experiences, she isn't particularly trusting of humans.
Her name is a combination of Ullr and rid, the former is the Norse god associated with skiing, and the latter due to wanting "to get rid of herself from the hunting grounds", alluding her past.
