Sheridan died in her sleep from natural causes, five days after her April 10 birthday, said Amanda Hendon, her longtime representative and friend.
Her “Seinfeld” role as Helen was her best known but followed decades of work on stage and screen. In the 1970s, Sheridan appeared on Broadway in plays and musicals
“I’ll hug him to say goodbye, and I’ll hug him to say hello," she said. "I told him I love him like he was my son. He said, ‘I know. I love you and Barney like you were my father and mother.’ ”