A sophisticated mother who works full-time in Manhattan and becomes friends with Stephanie. She is admired by Stephanie but has her own hidden motives and complex relationships.

Emily’s husband, originally from England, who works on Wall Street. He is portrayed as distant at first, but his relationship with both Emily and Stephanie evolves throughout the story.

The five-year-old son of Emily and Sean, whose friendship with Miles fosters the bond between their mothers. He plays a pivotal role in the dynamics of his family.

An insurance investigator involved in the case surrounding the life insurance policy of Emily. His probing adds pressure to the main characters' plans.