Liz Sheridan played Jerry Seinfeld’s mother on the show.
Liz Sheridan passed away at age 93. She was best known for playing Helen Seinfeld on the show from 1990 -1998. She also played Mrs. Ochmonek on Alf. In addition, she was the voice of Mrs. Stillman in the 1994-98 animated sitcom Life with Louie, starring Louie Anderson. Sheridan died in her sleep of natural causes.