Joe Castleman is a fictional character from the novel "The Wife" by Meg Wolitzer. He is a celebrated author who gains significant recognition for his literary work. Throughout the story, Joe's character is explored in relation to his marriage and the dynamics of his professional success. In the narrative, Joe's relationship with his wife, Joan Castleman, is central to the plot. Joan, who has her own literary aspirations, grapples with her role as both a supportive spouse and an individual artist. The story delves into themes of gender, ambition, and the complexities of their partnership.