Victor Frankenstein: ambitious, brilliant, naïve, then tormented. His flaw is his hubris and his failure to take responsibility.
The Creature (“Monster”): intelligent, sensitive, initially benevolent; becomes vengeful after repeated rejection. He invites our sympathy and simultaneously our horror.
Robert Walton: a parallel figure to Victor—driven by ambition; he listens to Victor’s story and makes a different choice.
Elizabeth Lavenza: idealised, passive, represents home, domestic tranquillity—but also becomes a victim of the consequences of Victor’s actions.
Henry Clerval: Victor’s friend, social, moral, humanising force; his death marks Victor’s collapse further.
Alphonse Frankenstein: father figure, representative of conventional values; his death symbolizes the collapse of Victor’s old life.