Hayden Panettiere died, and the tributes have been pouring in, remembering the late actress. One of her most memorable roles was Claire Bennet, a high school cheerleader, on Heroes.
The superhero series ran for four seasons on NBC with Panettiere playing Claire throughout the show’s run.
Panettiere’s co-stars like Masi Oka, Greg Grunberg, Dania Ramirez, Sendhil Ramamurthy, and James Kyson Lee have all memorialized their co-star, which you can read below.
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Masi Oka, who played Hiro Nakamura, an office worker who can manipulate space-time, shared his reaction on social media after learning about Panettiere’s death.
“Absolutely heartbroken to hear about Hayden. I had the privilege of working closely with her, and I’ll always remember her for her beautiful spirit, immense talent, and the joyful energy she brought to everything she did and the people around her,” Oka shared on X, the microblogging platform formerly known as Twitter. “She was way wiser beyond her years and now gone too soon… My heart goes out to her family and everyone who loved her. Rest in peace, Hayden.”
Greg Grunberg took to Instagram to remember Panettiere with a touching tribute.
“This doesn’t make any sense. So talented, so kind, so loving, so funny, so fearless, so professional, so caring, so young, and will be so missed by so many,” the actor who played LAPD officer Matt Parkman in the sci-fi series wrote. “I remember when I first worked with her, preparing myself for a diva. Man, did she shatter that expectation. I learned so much from her. Watching how she carried herself on and off the set. She was wise and kind beyond her years.”
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Dania Ramirez also shared on Instagram a photo with the late actress and captioned it with the following: “My heart aches so much right now. I love you and will always miss you. I take comfort in knowing that I am with you in life and in death because your love and energy has always transcended this dimension. My thoughts are with your daughter and those who truly love you. I know that the ones that got to feel your gifts will forever feel blessed and grateful for you.”
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Tributes To Hayden Panettiere

Image Credit: Adam Taylor / NBC Masi Oka: “Absolutely heartbroken to hear about Hayden. I had the privilege of working closely with her, and I’ll always remember her for her beautiful spirit, immense talent, and the joyful energy she brought to everything she did and the people around her. She was way wiser beyond her years and now gone too soon… My heart goes out to her family and everyone who loved her. Rest in peace, Hayden.”
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Tributes To Hayden Panettiere

Image Credit: Trae Patton / NBC Greg Grunberg: “This doesn’t make any sense. So talented, so kind, so loving, so funny, so fearless, so professional, so caring, so young, and will be so missed by so many. I remember when I first worked with her, preparing myself for a diva. Man, did she shatter that expectation. I learned so much from her. Watching how she carried herself on and off the set. She was wise and kind beyond her years.”
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Tributes To Hayden Panettiere

Image Credit: Frazer Harrison/Getty Images Sendhil Ramamurthy: “This is such a rough one. The 1st time I met Hayden was at the final screen test for Heroes. I was so nervous I was sweating through my shirt b4 I even got there. I went straight to the bathroom to compose myself and then went to sign in, expecting to find a bunch of fellow nervous-as-hell actors. Instead I found Hayden belting show tunes in the waiting room. Not a nerve in sight. I had to leave immediately. I spent the rest of the time in the hallway sweating. Hayden was already a pro. I was nearly twice her age and she had 3x as much experience. I learned a lot from her. She stuck up for background actors when they were mistreated, knew every crew members name, and was so generous with her time. Then there was me and Adrian Pasdar, being the responsible adults we are, going to the studio school room where Hayd had to go to class in between set ups, and coming up with excuses to try and boost her out of class.
The above pic [from Instagram post] was taken in Vegas the day after the Golden Globes. We had to do press and I wasn’t feeling well. Hayd kept going on and on at me about drinking fluids and made sure I had plenty of Gatorade. That’s how I will remember her: a kind, joyful, professional, shi*talker, who even at a young age, understood the importance of hydration. Sending love to her family, friends, and my fellow cast mates, RIP Hayd. You will be missed.”
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Tributes To Hayden Panettiere

Image Credit: Adam Taylor / NBC James Kyson Lee: “I am deeply saddened and so shocked by @haydenpanettiere ‘s passing… I first met Hayden when she was 16, and she was already a veteran actor with such bright spirit, and an older soul…
I remember her as a fierce protector of animal rights and a “cheerleader” for kindness, justice, and people being treated fairly – something that I’ve always appreciated.
May your soul Rest in Peace Hayden…
and my deepest condolences & prayers for her familyLife can be so short… let’s send some love out to the world, our loved ones, and to those who need it most today #gonetoosoon.”
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Tributes To Hayden Panettiere

Image Credit: Frazer Harrison / Getty Images Dania Ramirez: “My heart aches so much right now. I love you and will always miss you. I take comfort in knowing that I am with you in life and in death because your love and energy has always transcended this dimension. My thoughts are with your daughter and those who truly love you. I know that the ones that got to feel your gifts will forever feel blessed and grateful for you.”