Jerry Seinfeld paid tribute to Liz Sheridan, his costar on his popular TV show, who died a few days ago.

Sheridan, who died in her sleep from natural causes just five days after her 93rd birthday, played the role of Seinfeld's doting mother Helen in the popular comedy.

“Liz was always the sweetest, nicest TV mom a son could wish for,” Seinfeld wrote on Twitter, sharing a picture with Sheridan in black and white.

Liz was always the sweetest, nicest TV mom a son could wish for. Every time she came on our show it was the coziest feeling for me. So lucky to have known her. pic.twitter.com/ae9TDHQILU

— Jerry Seinfeld (@JerrySeinfeld) April 15, 2022

Sheridan, who had a prolific stage career on Broadway during the 1970s, died two weeks after Estelle Harris, who played the role of George Costanza's mother on the show.

One of my favorite people has passed - my tv mama, Estelle Harris. The joy of playing with her and relishing her glorious laughter was a treat. I adore you, Estelle. Love to your family. Serenity now and always. #RIPEstelleHarris

— jason alexander (@IJasonAlexander) April 3, 2022