The family home has an attached granny flat attached in which Hester's mother Nancy ( Fanny Rowe ) lives following her divorce from Hester's roguish father Guy ( Ballard Berkeley ); he often tries to win her back . ( The pair finally remarry in the last episode . ) Hester and William have two children of their own : the never-seen Tom who lives in New Zealand; and Emma, who is usually only heard ( voice of Debby Cummings ) telephoning her parents at inconvenient times.