Selma Blair, Viola Davis & More Honor Hayden Panettiere After Death

“I’m crushed,” Bethany wrote in part, alongside a photo of a younger Hayden. “I knew the wild little blonde. Was she nine? Ten? I was eighteen. She ran through the Screen Gem studio hallways at 222 E44th St. laughing and playing games in between blocking and camera rehearsals. Long, unruly curls trailing behind her. She knew her lines and everyone else’s. Her intelligence was astonishing. She understood scenes and nuance and human struggle like no child I’d ever seen on camera.”

Sharing that the pair would “connect on and off over the years,” Bethany noted she felt joy when they “were lucky enough to cross paths.”

“I dont understand how this is real,” she continued. “Everything seemed to be turning around. She was coming BACK to life, wasn’t she? It’s too young and there’s still so much more life. And her daughter…. Hayden, you are surround by love. I’m sorry for every moment I didn’t reach out or check in. This can’t be real..”

Indeed, her Scream costar Melissa Barrera wrote on her Instagram Stories Aug. 16, “Rest in peace sweet Hayden.”

Podcaster Jay Shetty—who sat down with Hayden in May for an emotional conversation about her sobriety journey and the death of her brother—shared he was in "disbelief" at her death.

"You were so special," he wrote on his Instagram Stories alongside a clip of her podcast episode. "May you always be protected and peaceful."

While announcing the news of his daughter’s death, Skip Panettiere asked for privacy so that he and his family could “process this unimaginable loss."

"It is with profound sadness that we share the tragic passing of our beloved Hayden,” he shared in an Aug. 16 statement to ABC News. “She was an incredible light and a force of nature who brought immeasurable love and joy to all who knew her—and to the millions who watched her onscreen.” 

Hayden’s cause of death has not been yet shared.

Three years before her death, Hayden’s brother Jansen Panettiere suddenly died at the age of 28 from an enlarged heart coupled with aortic valve complications, according to his family.

Earlier this year, the Remember the Titans actress—mom to daughter Kaya, 11, with ex-fiancé Wladimir Klitschko—detailed how often she battled the grief she felt since her brother’s death. 

"It's all the time," she told E! News in May. "It just evolves, especially with a sibling and being the older sibling. You're just riddled with guilt that you didn't do your job."

Hayden added, "I miss him all the time. I didn't think I would have to do life without him, but I'm grateful that I had the time I had with him."

For a look back at Hayden’s life in photos, keep scrolling…