One of the things that makes Abby stand out — aside from her sense of style — is her jet black hair. However, Pauley Perrette is actually blonde and, in order to transform into Abby, had to dye her hair during her “NCIS” run.
Though she had been doing it for years, Perrette revealed in 2014 that she had begun to develop an allergy to the dye. It started with a minor reaction that left “a rash all over her neck and scalp,” she told CBS News in an interview.
Six months later, she suffered another reaction, but this time, it was much worse. She shared two images on Twitter of her in the hospital to show just how bad it had gotten; instead of a rash, one side of her face had swollen exponentially. “I almost died from Black #HairDyeAllergy,” she told her followers.
Perrette ended up using “Elumen,” an ionic color infusion and safe alternative, so she could continue playing Abby. This had some wondering why the producers did not just have Abby go blonde in the show so Perrette could avoid danger next time she dyed her hair. She responded that “I don’t think the world is ready for a blonde Abby. I’m not ready for a blonde Abby.” Though Abby is no longer part of “NCIS” and Perrette has apparently retired from acting (per Pop Culture), she hasn’t gone back to her natural hair, instead showing off her new dye jobs on Twitter.