"The Goldbergs" actor Jackson Odell was found dead Friday at a sober living facility in California. He was 20.
Odell, who also appeared in "Modern Family" and "Arrested Development," was pronounced dead at 1:45 p.m., the Los Angeles Couty medical examiner's office told Oxygen.com.
"He was found unresponsive in his room," assistant chief Ed Winter said. "The autopsy is pending and we have no cause of death for him yet."
It could take up to six weeks before an official cause of death is determined, Winter said.
Odell played character Ari Caldwell on "The Goldbergs" from 2013 to 2015. He also had credited roles in Modern Family, Arrested Development, The Fosters and iCarly.
Odell was also known as a singer/songwriter and recently wrote several songs for the 2018 film "Forever My Girl."
His family called Odell a "brilliant, loving and talented soul," in a message they posted on his Twitter page.
"He had so much more to share," they wrote. "Our family will always carry that truth forward. Our wish is that the rest of the world who knew and loved him does as well."
Odell's former colleagues also took to social media to express their condolences.
"I'm so happy that I got to know you. You were a true talent and an even truer person," Charlie DePew, who starred with Odell on "The Goldbergs," wrote on Twitter.
Actress Ariel Winter, who worked with Odell on "Modern Family," said the news hit her especially hard because "someone so young really saddens me."