Who is Norman Greene from The House Next Door and what is their importance?

Norman Greene is Susan's husband and Melissa's adoptive father. Norman is a very stern and unloving man. He openly berates Susan and Melissa. Few people in the neighborhood like Norman because of his haughty attitude. Norman tells others that Melissa's illness is not an illness at all but instead Melissa's reaction to her mother babying her. Although he has converted to the Church of England, Norman is a Jew. When Walter tries to warn Norman about the evil in his house, Norman accuses Walter of being a hater of Jews. Norman is killed by his wife after he berates her for accidentally forgetting to mail invitations to a party.