Quasimodo
The bell-ringer of Notre-Dame. Deaf, deformed, and treated as a monster by everyone except Esmeralda. He is fiercely loyal to Frollo out of dependency, and to Esmeralda out of genuine love. His arc ends with him choosing her over everything, including his own life.
Esmeralda
A young Romani dancer who is kind, beautiful, and fatally idealistic. She trusts Phoebus, who uses her, and refuses Frollo, who wants to own her. She is the novel's moral center, but the world around her has no interest in protecting her.
Claude Frollo
The archdeacon of Notre-Dame and Quasimodo's guardian. Intelligent and devout on the surface, he is consumed by obsession underneath. He causes nearly every disaster in the novel while convincing himself he is the victim. Hugo makes him the story's primary engine of harm.
Phoebus de Châteaupers
A captain of the guard who is handsome, charming, and completely self-serving. Esmeralda loves him; he is mildly entertained by her. He survives the novel unscathed and marries his wealthy fiancée. His survival is one of Hugo's sharpest ironies.
Pierre Gringoire
A failed poet who accidentally becomes Esmeralda's husband through a Court of Miracles custom. He is comic, cowardly, and ultimately complicit in the Court's destruction when Frollo manipulates him into revealing its location. He survives by being too insignificant to punish.
Clopin Trouillefou
The king of the Court of Miracles, the underground community of Paris's outcasts. He is theatrical and ruthless in protecting his people. His community represents the city's forgotten poor, and its destruction by the king's forces removes the one place the powerless had to go.