Mum (also known as Mrs Butler) is one of the main characters of the show and is the mother of Stan and Olive and mother in law to Arthur Rudge. She is also the wife of Albert Butler, a deceased soldier, postman, banker and fireman.
Played in series one by Cicely Courtneidge and the later series by Doris Hare. She is an over the top character who rules the house and will not put up with any nonsense. She married her husband, Mr Albert Butler in 1922 when they were both 18. But tragically, Albert died of a heart attack in 1953, caused by drinking beer, whiskey and cider and smoking cigarettes.
She loves having the children around her, and strives to keep peace between everyone. She looks after the household cat. It is revealed in Friends in high places that her full name is Mabel, Ethel Butler however she usually is called Ethel.