After suffering a seizure in his sleep, Disney Channel star Cameron Boyce has passed away, shocking fans, colleagues and celebrities around the world. They shared their thoughts and memories of the young actor, best known for his roles in "Grown Ups", "Jessie" and "The Descendants", in posts on social media.

One of the biggest stars to react to the actor's death is Adam Sandler, who played Boyce's father in "Grown Ups" and "Grown Ups 2."

Still frame from the Grown Ups 2 movie with Adam Sandler
Still frame from the Grown Ups 2 movie with Adam Sandler and a young Cameron Boyce
Columbia Pictures/ YouTube

“Too young. Too sweet. Too funny," Sandler tweeted Sunday morning. "Just the nicest, most talented, and and most decent kid around,” Sandler wrote on Twitter. “Loved that kid. Cared so much about his family. Cared so much about the world. Thank you, Cameron, for all you gave to us. So much more was on the way. All our hearts are broken. Thinking of your amazing family and sending our deepest condolences.”

RELATED: Social media mourns death of Disney Channel star Cameron Boyce

RELATED: Disney Channel actor dies in his sleep at only age 20, family says

Musical artist Hozier wrote on Twitter, "Deeply saddened to hear about the passing of Cameron Boyce. When we met I was taken aback by his energy and drive, his dedication to his craft and the sheer kindness he exuded. It was a joy to witness the man's skill. Sending love to his family and loved ones." Boyce appeared in a music video for the artist's song "Almost Sweet" earlier this year.  

The CEO of The Walt Disney Company, Robert Iger, also expressed his sadness on behalf of the company, saying, "The Walt Disney Company mourns the loss of , who was a friend to so many of us, and filled with so much talent, heart and life, and far too young to die. Our prayers go out to his family and his friends."

(Nicholas Garbaty at Tegna contributed to this story.)