Bjorlin was born on August 2, in Newport, Rhode Island. She has an older brother Ulf Alexander Jr. She also has an older half-brother Kaj, and two older half-sisters Katja and Kamilla, from her mother's first marriage. Bjorlin's family moved to her father's native country of Sweden while she was still an infant. She has described her childhood as "wonderful" with "loving parents and siblings to lean on", although Bjorlin recalls being "oblivious" to racial tensions going on in Sweden. Although she never attended school there, a few of her siblings did and she remembers them talking about how they "experienced some torment" from classmates due to being half-Iranian.