1. Bernard Marx: Bernard, one of the main characters, shows mixed feelings towards the reservation. He finds the life there more primitive and chaotic compared to the highly controlled and organized World State. At the same time, he is fascinated by the diversity and freedom, including personal and relational freedom they experience, that exist on the reservation.
2. Lenina Crowne: Lenina, Bernard's companion, represents conformity and the conditioning of the World State society. For her, the reservation seems dirty, primitive, and morally repugnant due to the presence of aging, diseases, and traditional family structures that starkly contrast with the controlled happiness of her world.
3. John the Savage: As an outsider raised on the reservation, John experiences a clash between his upbringing and the rules and values of the World State. While initially attracted to the comforts and pleasures offered by the World State, he becomes deeply unsettled by their suppression of emotions, lack of privacy, and loss of connection to nature.
4. The World State Society: Generally, most citizens within the World State show little interest in, and are sometimes unaware of, the existence of the reservation. The conditioning they receive keeps them focused on fulfilling their programmed roles without questioning. However, some, like Mustapha Mond, the World Controller, understand the necessity of the reservation as a controlled contrast to their society.
Overall, reactions to the reservation in "Brave New World" serve as thought-provoking reflections on issues of control, societal uniformity, individual versus community well-being, and the boundaries of what is considered socially acceptable or desirable.