Liz Sheridan, who played doting mom to Jerry Seinfeld on his hit sitcom, died early Friday. She was 93.

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 

Another “Seinfeld” mom, Estelle Harris, died two weeks ago on April 2. Harris, who played hot-tempered parent to Jason Alexander's George Costanza, also was 93.

Sheridan had guest roles on TV series including “Kojak,” “Cagney & Lacey” and “Family Ties,” and played the pesky neighbor Raquel Ochmonek on “ALF” from 1986 to 1990. 

“Liz was always the sweetest, nicest TV mom a son could wish for,” Seinfeld said Friday on Twitter. “Every time she came on our show it was the coziest feeling for me. So lucky to have known her.”

In a 1998 interview with The Associated Press, Sheridan discussed how fond she had become of the comedian.

“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.’ ”