Greg Grunberg Reveals Sudden Baldness Is Due to Alopecia Diagnosis Following Surgery

The actor also shared that he lives with Hashimoto’s disease.
Greg Grunberg Reveals Sudden Baldness Is Due to Alopecia Diagnosis Following Surgery
Greg Grunberg attends the Los Angeles Premiere of Max Original Series "Duster" in Universal City, Calif., on May 8, 2025. Monica Schipper/Getty Images
Haika Mrema
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Actor Greg Grunberg, known for his roles in “Felicity,” “Heroes,” and “Alias,” is speaking out about his recent hair loss after being diagnosed with alopecia, an autoimmune disorder that causes the body to attack its own hair follicles.

In a YouTube video posted on May 7 to his “Talk About It” channel, Grunberg addressed public concern over his altered appearance after photos circulated of him without his usual hair.
Haika Mrema
Haika Mrema
Author
Haika Mrema is a freelance entertainment reporter for The Epoch Times. She is an experienced writer and has covered entertainment and higher-education content for platforms such as Campus Reform and Media Research Center. She holds a B.B.A. from Baylor University where she majored in marketing.