The Boys Season 5’s Erin Moriarty Fought Graves’ Disease While Shoot, Texted Her Mom On Feeling Low

The Boys Season 5 actress, Erin Moriarty has struggled a lot with the fifth and final season of The Boys. This is because her physical and mental health went for a toss due to her autoimmune disorder called Graves’ disease. Erin essays the role of the rebel superhero Starlight and reveals that she could not be present for her character because she was facing a lot of pain. Erin Moriarty could not get herself to watch the final season of The Boys. 

She has been a fan of the show due to her role as ‘Annie Starlight’. However, did you know that it was in June 2025 that Erin went public with her Graves’ disease, and back then she had completed six months of filming, The Boys. Her doctors had told her that she did not feel like herself during the entire production. She had not been feeling like herself during the full production. Erin had symptoms like fatigue, nausea and a fall. However, due to her immediate treatment, she felt better during the series finale.

What is Erin Moriarty’s Graves’ disease?

Erin Moriarty revealed that she had been diagnosed with Graves’ disease back in June 2025. The autoimmune disorder is known to affect the thyroid gland, according to a Cleveland Clinic report. Symptoms include insomnia, hair loss, anxiety, along with a fast heartbeat, diarrhoea, shortness of breath, and weight loss. In an interview with the Hollywood Reporter, Erin had said:

“It’s important for me to be vocal about autoimmune diseases. I was starting to feel so ill, and even though I come from a family of doctors, no one thought to say, ‘Go get your levels tested. It was like I was offline for the first six to seven episodes, and then I came back online. I finally felt present at the very end of season five.”

Erin Moriarty blames stress as one of the reasons for Graves’ disease

A report by the PEOPLE had revealed that it was on June 25, 2026 when Erin had revealed that if she hadn’t chalked it all up to stress and fatigue, she would have caught the disease very soon. She had written in a long post that autoimmune disease manifests differently in everybody/every body. Sharing snaps from her health battle, Erin on her Instagram had said:

“Your experience will be different from mine. My experience will be different from yours. Perhaps greatly, perhaps minutely. One thing I can say: if I hadn’t chalked it all up to stress and fatigue, I would’ve caught this sooner. A month ago, I was diagnosed with Graves’ disease. Within 24 hours of beginning treatment, I felt the light coming back on. It’s been increasing in strength ever since. If yours is dimming, even slightly, go get checked. Don’t “suck it up” and transcend suffering; you deserve to be comfy. Shit’s hard enough as is.”

Erin Moriarty cried to her mom for help when she was diagnosed with the disease

Erin Moriarty also had a heartbreaking talk with her mother where she revealed feeling nauseated. She shared of wanting relief and said that she could not live like this forever. Erin had told her mom in a text message that there were not even moments when she was feeling normal, not even for five seconds. Erin revealed that she did not just feel fatigued; it was a cry for help, as she did not know how long she could be in the same. Erin Moriarty’s mother had replied that she was reaching in 15 minutes and told would call her after reaching. A netizen emphatised with Erin and wrote, “So good to hear about your treatment! Good health is life-changing. Be well, ocean buddy. Sending so much love and support.”

Erin Moriarty struggled on the sets of The Boys due to her disease

Erin Moriarty further in her interview with the Hollywood Reporter revealed that she was struggling on the sets daily to get it through all. She revealed of being very fortunate to be surrounded by a really supportive cast and crew, but it was really scary at times. She revealed that she did not watch the finale because it was important for her to put her psychological health above all other things. In her words:

“I wasn’t able to transcend the physical and mental toll that this disease took on me until episode seven. It’s a testament to how profoundly impactful these autoimmune diseases can be, and I don’t think that people are aware to the degree that they can be. So I wish I was able to say it served the character, but unfortunately, it was a matter of getting through every day. The psychological toll that it took on me, I’ll be able to use it in the future, but I couldn’t while it was going on simultaneously. Sadly not.”

What are your views about Erin Moriarty revealing being diagnosed with Graves’ disease back in June 2025?

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