Marjorie's father and the founder of Post Cereal Company, Charles William is a towering figure in her life, influencing her business acumen.

Marjorie's first husband, Ed comes from an old-money family and his relationship with Marjorie is marked by tension between their differing social backgrounds.

Marjorie's second husband, who is initially involved in the family business but later struggles with Marjorie over control and influence within General Foods.

Marjorie's third husband and a diplomat, with whom she navigates high-level social circles during his ambassadorship.

Marjorie's fourth husband, whose short-lived marriage with her is overshadowed by his hidden romantic interests.

A close friend of Marjorie's who provides guidance and support, serving as a symbol of unapologetic individuality and strength.