Kino The protagonist of the novella. Kino is a dignified, hardworking, impoverished native who works as a pearl diver. He is a simple man who lives in a brush house with his wife, Juana, and their infant son, Coyotito, both of whom he loves very much. After Kino finds a great pearl, he becomes increasingly ambitious and desperate in his mission to break free of the oppression of his colonial society. Ultimately, Kino’s material ambition drives him to a state of animalistic violence, and his life is reduced to a basic fight for survival.
Juana Kino’s young wife. After her prayers for good fortune in the form of a giant pearl are answered, Juana slowly becomes convinced that the pearl is in fact an agent of evil. Juana possesses a simple faith in divine powers, but she also thinks for herself. Unfortunately for her and her child, Coyotito, she subjects her desires to those of her dominant husband and allows Kino to hold on to the pearl.
The doctor A small-time colonial who dreams of returning to a bourgeois European lifestyle. The doctor initially refuses to treat Coyotito but changes his mind after learning that Kino has found a great pearl. He represents the arrogance, condescension, and greed at the heart of colonial society.
The priest The local village priest ostensibly represents moral virtue and goodness, but he is just as interested in exploiting Kino’s wealth as everyone else, hoping that he can find a way to persuade Kino to give him some of the money he will make from the pearl.
Juan Tomás Kino’s older brother. Deeply loyal to his family, Juan Tomás supports Kino in all of his endeavors but warns him of the dangers involved in possessing such a valuable pearl. He is sympathetic to Kino and Juana, however, putting them up when they need to hide and telling no one of their whereabouts.
