‘Felicity' and ‘Heroes' actor Greg Grunberg reveals shock reason he's suddenly bald

New York Post

10-05-2025

He's about to make the best mistake of his life.
Greg Grunberg — known for his roles on hit shows like 'Felicity' and 'Heroes' — has addressed the concerns over his balding appearance, revealing the shocking reason behind his new look.
'First of all, I want to thank everybody who's like asking if I'm okay, you know, 'What's going on? I saw pictures of you, you have no hair, what's happening?' Well this is what's happening,' the 58-year-old actor said in a video posted to his 'Talk About It' YouTube channel on Wednesday.
Removing a black baseball cap from his head, Grunberg exposed his bald head and explained that he was diagnosed with alopecia.
8 Greg Grunberg addressed his new look on his YouTube channel.
Talk About It Company/YouTube
8 The actor revealed he's suffering from alopecia.
Talk About It Company/YouTube
'I, all of a sudden, got alopecia and I knew nothing about it. I'm still learning about it,' he said.
Alopecia is a disease that causes hair loss. While there is no cure, medications and treatments can help regrow the hair.
Jada Pinkett Smith, 53, famously announced she suffered from alopecia in 2022 after her husband, Will Smith, slapped Chris Rock at the 94th Academy Awards.
8 Greg Grunberg said he recently found out about his diagnosis after knee replacement surgery.
Talk About It Company/YouTube
8 Greg Grunberg famously played Sean Blumberg on 'Felicity.'
the WB
8 He also landed the role of Matt Parkman on 'Heroes.'
í© NBC Universal, Inc.
Grunberg, who played Sean Blumberg opposite Keri Russell, Scott Speedman, and Scott Foley in 'Felicity' from 1998 to 2002, revealed he discovered his diagnosis following a knee replacement surgery in October.
He believes the operation may have triggered his alopecia.
'I think it shocked the alopecia into, you know, actually presenting itself,' the actor explained. 'I think I probably had it dormant in my body for a long time.'
8 He was also diagnosed with Hashimoto's disease, an autoimmune disorder that attacks the thyroid gland.
Chris Haston/NBC
During his confession, Grunberg also shared that he has Hashimoto's disease, an autoimmune disorder that attacks the thyroid gland. Thinning hair is a common side effect, according to the National Institute of Diabetes and Digestive and Kidney Diseases.
He thinks that, combined with his pain medication after surgery, could have accelerated his hair loss.
But Grunberg isn't letting his baldness get him down.
8 'This is the new look you're going to see,' Greg Grunberg said of his baldness.
© NBC Universal, Inc.
'What I've learned in this immediate, you know, just doing the googling and the searching and going on all these chat groups and everything, is millions of people have this,' he said. 'And I look good! I mean, I'm lucky, all right? I look good.'
The 'Heroes' star is embracing his appearance, noting to his followers, 'This is the new look you're going to see.'
He also disclosed, 'I don't really care, but I just wanted to address this so you know what's going on.'
8 He also assured his fans that he's staying healthy.
Variety via Getty Images
Grunberg said he's doing everything right to make sure he's healthy.
'All my tests are coming back negative, my numbers are down, I'm eating right, I'm exercising, I'm doing all the right stuff,' the actor shared.
'No need to worry, everything is good… So thank you, I love you all. Thank you so much for all of your concern and your questions. It's alopecia and a lot of people have it and a lot of people — most people — live well with it, so that's what I'm doing, getting ahead of it.'
Grunberg made his acting debut in the 1990 TV movie Stolen: 'One Husband.' He starred in several one-off appearances in hit series like 'Melrose Place,' 'Baywatch,' and 'Murphy Brown' until his big break with 'Felicity' in 1998. The series lasted four seasons.
He then landed a part alongside Jennifer Garner in 'Alias' before he got the role of Matt Parkman in 'Heroes.' Grunberg has also starred in 'The Client List,' with small parts in massive blockbusters like 'Mission: Impossible III' (2006), 'Star Wars: Episode VII – The Force Awakens (2015), and 'A Star Is Born' (2018).