A middle-aged widow and writer from Vermont who becomes a devoted companion to Milly Theale, offering both emotional support and practical assistance during their travels in Europe.

A complex and ambitious young woman in her early twenties, navigating societal expectations and personal desires, especially concerning her romantic involvement with Merton Densher.

An idealized, wealthy young American woman seeking meaningful connections and experiences, notable for her charm and spontaneity despite living in mourning for her family.

A journalist with aristocratic ties who is romantically involved with Kate Croy, characterized by his sensitivity and internal conflict regarding his feelings and ambitions.

A titled but financially lacking nobleman who attempts to secure financial stability through marriage, serving as a rival in romantic pursuits within the narrative.