Juan Tomas
Juan Tomas is Kino’s older brother, who provides his younger sibling with shelter, wisdom, and support. He articulates important truths in the novel: that the pearl is evil, that mankind is innately selfish and greedy, and that the pearl-dealers are likely to cheat Kino.
Doctor’s servant
The Doctor’s servant is an example of someone who shares Kino’s race and ancestry but does not share Kino’s drive to resist the influence of European colonizers. When Kino tries to speak to him in the old language, he responds in the language of the doctor.