Babs Kramer is Kramer's mother. She is mentioned many times as a drunk, but in "The Switch", she claims to have been clean for two years. She is only mentioned in episodes such as "The Nose Job", "The Cafe", and "The Tape" until "The Switch", where she is seen for the first time. There she works as a matron in a restaurant bathroom, and reveals Kramer's first name is Cosmo, to George's surprise. George then gets Babs to wait for his girlfriend to go to the bathroom to see if she is bulimic, but Kramer convinces her to quit, which she does.
Babs is not seen again until a brief appearance in "The Finale, Part 2" where she attends the trial of Jerry, Elaine, George, and Kramer in Latham County. A deleted scene had her meeting Uncle Leo. After the four of them were found guilty, Babs was comforted by Uncle Leo.
Babs was portrayed by Sheree North.