The Creature: Built by Victor, he is a being who, although he is kind at first, becomes a vengeful figure when he experiences rejection and loneliness. Its evolution reflects the struggle for acceptance and the desire for human connection.

Elizabeth Lavenza: Victor's wife and love, she represents innocence and kindness. His death, indirectly caused by Victor's creation, underscores the devastating consequences of Frankenstein's mistakes.

Henry Clerval: Victor's close friend and symbol of humanity that Victor loses in his scientific obsession. Henry's death by the creature marks Victor's moral decline.

Robert Walton: An explorer who, at the beginning and end of the story, listens to and documents Victor's story. His letters serve as a narrative framework, offering a contrast between his desire for exploration and Victor's warnings.

Responsibility and Consequences: Victor, by creating life, becomes responsible for the well-being of his creature. However, by abandoning it, Shelley exposes the serious consequences of not taking responsibility for our actions.

Appearance vs. Reality: Society judges the creature by its appearance, without understanding its inner nature. The play questions the superficiality of judgment based on appearance and how this can distort a person's truth.

Knowledge and its limits: Through Victor's obsession with science, Shelley explores the ethical limits of knowledge. Victor's relentless quest to unravel life's secrets results in tragedy, highlighting the danger of unbridled ambition.

Human Nature: The play suggests that hatred and revenge are not inherent, but can arise in response to traumatic experiences and abandonment. The creature, in essence, seeks love and acceptance, and its transformation into a "monster" is a product of its interaction with humanity.