Sweeten and his twin brother Sullivan first appeared on Raymond when they were 16 months old. They played Ray Romano's twin sons Geoffrey and Michael Barone, respectively. Their real-life sister Madylin played TV big sister Ally. Everybody Loves Raymond ran from 1996 to 2005.
"This morning a terrible family tragedy has occurred," Madylin told Entertainment Tonight. "We are devastated to report that our beloved brother, son, and friend, Sawyer Sweeten, took his own life. He was weeks away from his 20th birthday. At this sensitive time, our family requests privacy and we beg of you to reach out to the ones you love."
"At this time I would like to encourage everyone to reach out to the ones you love. Let them have no doubt of what they mean to you," Madylin added on Facebook.
"Sawyer was a funny and exceptionally bright young man. He is gone from us far too soon," Patricia Heaton, who played Sweeten's mother in the sitcom, said in a statement. "The loss the Sweeten family is experiencing is unimaginable. Tonight hug your children a little tighter and please keep Sawyer and his family in your thoughts and prayers."
Romano said he was "shocked" and "terribly saddened" by Sweeten's death. "He was a wonderful and sweet kid to be around. Just a great energy whenever he was there," Romano said in a statement. "My heart breaks for him, his family, and his friends during this very difficult time."
Sweeten's on-screen grandmother Doris Roberts shared a photo of the cast on Facebook, writing: "He was a very sweet young man who will be dearly missed. Make sure your loved ones know how much you care about them, and please check in with them if you haven't touched base with them for a while. It's very important to keep in touch."
Everybody Loves Raymond creator Phil Rosenthal also expressed his condolences. "We knew and loved Sawyer as a little boy," he said. "He and his real life siblings Sullivan and Madylin were such a charming, integral part of our TV family. They never failed to make us laugh, or remind us how we feel about our own children. We are terribly sad to hear this news and our hearts go out to Sawyer's family."