Disney Star Cameron Boyce Dead at Age 20

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Cameron Boyce, the star of Disney’s Descendants and Jessie has died at age 20. "It is with a profoundly heavy heart that we report that this morning we lost Cameron," a family spokesperson said in a statement to ABC News on Saturday night, sharing that the cause of the young actor’s death was due to "an ongoing medical condition."

"He passed away in his sleep due to a seizure which was a result of an ongoing medical condition for which he was being treated. The world is now undoubtedly without one of its brightest lights, but his spirit will live on through the kindness and compassion of all who knew and loved him," the family spokesperson said. "We are utterly heartbroken and ask for privacy during this immensely difficult time as we grieve the loss of our precious son and brother."

Boyce began his acting career at age 9 when he appeared in 2008’s Mirrors alongside Kiefer Sutherland.

He will appear in Descendants 3, which is yet to be released. He was also set to star in HBO’s Mrs. Fletcher, opposite Kathryn Hahn.

In addition to his acting, Boyce was involved in nonprofits, such as the Thirst Project, which aims to raise awareness about the global water crisis.

"From a young age, Cameron Boyce dreamed of sharing his extraordinary artistic talents with the world. As a young man, he was fueled by a strong desire to make a difference in peoples’ lives through his humanitarian work," a Disney Channel spokesperson said in a statement to ABC News. "He was an incredibly talented performer, a remarkably caring and thoughtful person and, above all else, he was a loving and dedicated son, brother, grandson and friend. We offer our deepest condolences to his family, castmates and colleagues and join his many millions of fans in grieving his untimely passing. He will be dearly missed."