Actress Liz Sheridan dead at 94 April 16, 2022 Liz Sheridan, actress who played Jerry Seinfield mum in sitcom ,Seinfield is dead. She was 94 years old. According to reports, Sheridan died of natural...Please wait...Subscribe to our newsletterWant to be notified when our article is published? Enter your email address and name below to be the first to know. SIGN UP FOR NEWSLETTER NOW Enter your email address:Delivered by FeedBurner