The former child star died of a suspected suicide in Texas, aged 19.

He is best known for playing Ray Romano and Patricia Heaton's onscreen son Geoffrey alongside his twin brother Sullivan in the sitcom.

Heaton paid tribute to the tragic teenager on Twitter.com, writing, "Sawyer Sweeten was a funny and exceptionally bright young man. He is gone from us far too soon."

Mean Girls actress Lacey Chabert also wrote, "My thoughts are with the family of #SawyerSweeten... Heartbreaking news."