Sloane is one of the main characters in the book and the driver of much of the action. She is conventionally attractive and advanced in her career; her position as Vice President of North American Legal Affairs at Truviv means that she is her friends’ superior. Sloane had an affair with Ames many years prior and he has used it against her in the workplace ever since.

Sloane is a force to be reckoned with and often does things her own way, often justifying her actions after taking them. As Sloane leads the movement to oust Ames and attempts to get her daughter Abigail’s school to take her bullying seriously, she worries that she is not the right leader or that she is doing everything out of self-interest and an inability to back down. Her worries are valid: Sloane has the energy and character to lead the movement, but lacks the ability to understand others' perspectives. For example, Sloan rallies Ardie and Grace into filing a lawsuit against Ames with her, but ignores the crucial fact that Katherine never wanted to come forward with her story.