The actress earned four Emmys for the role of the caring matriarch to sons Ray (Ray Romano) and Robert (Brad Garrett). She played the part throughout the series' nine seasons, starting with the September 1996 pilot. Peter Boyle — who played her husband, the cantankerous Frank Barone — died in December 2006.
Raymond costar Patricia Heaton tweeted her condolences on Monday, calling Roberts' death "truly the end of an era."
Roberts won an additional Emmy for her 1982 guest appearance on St. Elsewhere and is also known for roles on such TV series as Remington Steele, Cagney & Lacey, The Middle and Melissa & Joey. Her primetime serial credits included Mary Hartman, Mary Hartman, Soap, Grey's Anatomy and Desperate Housewives.
She appeared in films including The Heartbreak Kid, Dickie Roberts: Former Child Star and Grandma's Boy.