Richard: The protagonist, a middle-aged man who hosts the dinner party. He reflects on life and his relationships, seeking answers about his identity, existence, and belongingness.
Sally: Richard's wife, a complex character who is supportive of Richard yet sometimes appears mysterious and distant. She provides insights into the dynamics of their relationship.
Robert: Richard's longtime friend, a successful and charming businessman who seems envious of Richard's intellectual endeavors. He represents contrasting aspects of life, highlighting material success versus fulfillment.
Sarah: Robert's wife, an intelligent and insightful woman. Her interactions with Richard reveal layers to her personality and shed light on the complexities of relationships.
Mark: A young and ambitious writer who is intrigued by Richard's work. His admiration and engagement in philosophical discussions contribute to Richard's quest for understanding.
Anna: A musician who is involved with Mark. She adds an artistic and creative perspective to the group, representing the power of self-expression and the interplay of different forms of art.
Henry: An elderly philosopher who is a mentor and friend to Richard. His conversations with Richard provide intellectual depth and philosophical musings.
Caroline: Henry's wife, an elegant and wise woman who complements Henry's character and supports Richard's reflections.
George: A successful scientist and Sally's former lover. His presence at the dinner party adds tension and brings to light unresolved feelings and secrets within the group.
Lucy: A young woman who is introduced as a surprise guest. Her interactions with the group add layers of complexity and challenge the established dynamics of the dinner party.