Jessica's niece Carrie and her husband, Leonard Palmer, are introduced.
Angela Lansbury is only 6 years older than Dean Jones (her nephew-in-law Leonard), while he is nearly 30 years older than Kate McNeil (her niece Carrie).
This is the second time Karen Grassle, of Little House on the Prairie (1974) fame, has been cast. She appeared as Christine Stoneham in Murder in a Minor Key (1987).
This is the second time Dean Jones has been cast. He appeared as Marcus Boswell in It's a Dog's Life (1984).