The kids turn against Alice for being a snitch, so she says bye-bye to the Bradys, only to be replaced by a morose maid who fails to fill Alice's sensible shoes. Kay: Mary Treen. Mr. Foster: Snag Werris. Customer: Harry G. Crigger. Alice: Ann B. Davis. Marcia: Maureen McCormick. Jan: Eve Plumb. Greg: Barry Williams. Cindy: Susan Olsen.