The actress revealed she’d been diagnosed with the autoimmune condition in June 2025.

Erin Moriarty gave The Boys producers access to her medical treatment for Graves’ disease: ‘I was so ill’

The actress revealed she'd been diagnosed with the autoimmune condition in June 2025.

By Emlyn Travis

Emlyn Travis

Emlyn Travis is a news writer at **. She has been working at EW since 2022. Her work has previously appeared on MTV News, Teen Vogue, and NME.

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July 1, 2026 11:30 a.m. ET

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Erin Moriarty on 'The Boys'. Credit:

- Erin Moriarty gave *The Boys*'* *production team access to her health information.

- The actress revealed she gave producers "first medical allowance" to speak to her doctors amid her battle with a then-undiagnosed ailment.

- She was later diagnosed with Graves' disease.

Erin Moriarty leaned on *The Boys*' production team for help during a recent health scare.

The 32-year-old actress, who played Annie January/Starlight on the Prime Video series, revealed that she gave the superhero show’s producers “full medical allowance” to speak directly to her doctors as she became progressively ill with a then-undiagnosed autoimmune condition. She announced that she’d been diagnosed with Graves’ disease in June 2025.

Moriarty explained on the *MeSsy* podcast that she was encouraged by a friend to get blood work done after she began oversleeping and experiencing numbness in her hands and feet.

Daniele Venturelli/Getty

“As soon as I got blood work, they noticed something was off,” she said. “And then that started into a whole other interesting experience because… It took a really long time to diagnose me, so then production started to become a little suspicious, but it's because I kept getting poked and tested for the wrong antibody.”

She described the experience as a “painful period to go through,” noting that it’d generally take a week to get the test results back and that many of them were for the wrong antibody.

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“I eventually just gave production full medical allowance to be directly in touch with my doctors, because it got to a point where I was so ill,” she said. “I was struggling to make phone calls, articulate myself. Everything sounded nonlinear. I was not cognitively present.”

While Moriarty did name any accommodations that she received for her condition on set, she admitted that “there were certain components of my character that would have been more pronounced throughout the season had I been able to show up for her.” *The Boys* premiered its fifth and final season in April.

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“And it's funny, because the one episode where I had started treatment and I was fully present for is the episode that I'm the most in, which is the finale,” she said. “And thank God I was able to be present at all for this final season. And thank God treatment has worked for me…. It doesn't work for everyone.”

She compared the change in her life on the medication to “night and day,” adding, “I took one pill of that medication. The next day, I woke up, and I was brought back to life. It was so quick.”

Moriarty said on the podcast that it took roughly six to eight weeks to receive her Graves’ diagnosis. The condition affects causes the body to produce too much of the thyroid hormone and can lead to symptoms like exhaustion, irritability, unintentional weight loss, hand tremors, and skin discoloration, according to the Mayo Clinic.

Listen to Moriarty discuss her health in the clip above.

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