The 15-year-old protagonist and narrator is the charismatic but sociopathic leader of a gang of teenage criminals who loves classical music and "ultra-violence." He narrates in a slang dialect called "Nadsat," viewing himself as a misunderstood victim rather than a criminal.

A member of Alex's gang defined by his immense physical strength and low intelligence. He serves as the muscle of the group but harbors resentment toward Alex for constantly mocking his stupidity.

An ambitious and calculating member of the gang who acts as the de facto second-in-command. He eventually challenges Alex’s absolute authority, advocating for more profitable, organized crimes over random violence.

The fourth member of the gang, generally the most quiet and compliant of the droogs. He tends to follow the group consensus without causing trouble or challenging leadership.

A reclusive writer living in a cottage called "HOME" who is working on a manuscript titled *A Clockwork Orange*. He is a firm believer in liberty and free will, arguing that without the choice between good and evil, a man ceases to be human.

Alex's weary "Post-Corrective Adviser" who attempts to keep Alex out of prison but has little faith in his actual rehabilitation. He represents the ineffective state bureaucracy, trying to understand violence through social science but failing to connect on a human level.

A rough, uneducated, but well-meaning priest at the prison where Alex is incarcerated. He is one of the few who questions the morality of the state's rehabilitation techniques, fearing that forced goodness removes humanity.

A high-ranking government official focused on political stability and winning elections by reducing prison overcrowding. He is a pragmatist who champions new rehabilitation techniques, prioritizing results over the actual welfare of criminals.

A cold, scientific behaviorist who leads the "Ludovico Technique" experiment. He treats Alex as a mere test subject, concerned only with the efficiency of conditioning against violence rather than the moral cost of removing free will.