A primary point-of-view character and deuteragonist, whose emotional turmoil following her wife's abrupt departure leads to a series of misinterpreted actions by others. As an outsider to the West Hollywood Moms' Club, her actions serve as a red herring for much of the novel.

The novel's primary antagonist who hides her manipulative nature behind the guise of a supportive friend and mother. Her actions are driven by financial desperation and a feeling of being overlooked.

A charismatic and seemingly flawless leader of the West Hollywood Moms' Club whose death serves as the catalyst for the novel's central mystery. Her secretive nature and pursuit of perfection leave lingering questions about her true self.

A static character who acts as a primary antagonist in Brooke's storyline through emotional detachment and self-interest, particularly affecting Brooke's life post-relationship.

Whitney's husband, whose gambling addiction and selfish behavior set off a chain of deceptions. His charm disguises a weak-willed nature that contributes to the story's tangled relationships.

A passive supporting character who inadvertently becomes pivotal in solving the central mystery, motivated by personal betrayal to act at a crucial moment.

The grieving widower to Kiersten whose deep sorrow is complicated by the posthumous discoveries about his wife's secrets. He represents the costs of deception and lost trust.

Minor characters who form the social backdrop of the West Hollywood Moms' Club, often serving to illustrate the group's competitive and judgmental nature. They react to and comment on the unfolding events in the novel.