Milly is one of the two prostitutes, along with Babs, that Tony Last and Jock Grant-Menzies meet at the Old Hundredth club on the night of their drunken spree. She and Babs fail to secure Tony and Jock’s business on that night, but she later agrees to go with Tony to Brighton, helping him frame himself as an adulterer to secure his and Brenda’s divorce (due to the divorce laws of the time). She insists on bringing along her insufferable eight-year-old daughter Winnie, to Tony’s dismay. Her and Tony’s strained interactions throughout the weekend reveal Tony’s discomfort in dealing with people of a lower class, inadvertently insulting Milly.