Jerry Stiller, who brought the explosive Frank Costanza to life, died on May 11, 2020, at the age of 92. His sharp comedic timing and memorable catchphrases made him a fan favorite. Estelle Harris, known for her dramatic portrayal of George’s mother, Estelle Costanza, followed on April 2, 2022, at the age of 93, captivating audiences with her exaggerated voice and impeccable comedic delivery.