Joanne Frost (born 27 June 1970) is an English television personality, nanny and author. She is best known for the reality television programme Supernanny UK, in which she was the central figure. The show first aired in the United Kingdom in 2004 and she has branched off into several other reality shows in the United Kingdom, United States and the Netherlands. Family S.O.S. with Jo Frost addressed issues such as addiction and abuse. Family Matters is a talk show. She has written six books on child care.