Erin Moriarty, who stars in the Amazon Prime Video series The Boys, says she was diagnosed with Graves’ disease in June 2025. Reports from multiple outlets describe the condition as an autoimmune disorder and note that Moriarty discusses how it has affected her day-to-day experience and work on the show. One account highlights that she has spoken about the timing of the diagnosis and her reaction to learning she had the condition. Another focuses on how Graves’ disease can influence performance and daily functioning, with Moriarty describing the impact it has had on her while filming. Both sources emphasize that the diagnosis occurred in June 2025 and that Moriarty publicly addresses her health in the context of her role in the series. Coverage also notes that she mentions support from co-stars during this period. Overall, the reporting aligns on her confirmation of the Graves’ diagnosis date and her statements about how it influences her ability to work on the show.