Which character reflects on the consequences of living an unlived life?

Liesl is a character who embodies the themes of reflection and the consequences of an unlived life in "Fifth Business." Throughout the narrative, she serves as a pivotal figure representing the richness of experience and self-awareness. Liesl’s insights and perspectives challenge the protagonist, Dunstan Ramsay, to confront his own choices and the paths he did not take. She encourages him to embrace his full potential and is often portrayed as someone who has lived deeply, thus highlighting the importance of engaging with life rather than merely existing.

Her role becomes especially significant as she acts as a mirror for Dunstan, helping him to understand the impact of his choices on his identity and the life he has lived. In contrast, the other characters—Mary Dempster, Padre Balzone, and Paul Dempster—each represent different aspects of existence, spirituality, and the search for meaning, but they do not encapsulate the theme of reflecting on the consequences of an unlived life in the same way that Liesl does. Her character truly emphasizes the importance of acknowledging one's past and finding fulfillment in made choices, making her the most fitting option when it comes to this theme.