Some secondary characters play important roles too. Like the bystanders who sometimes witness the confidence man's actions but may not fully understand what is going on. They add to the atmosphere of the story, creating a sense of a bustling world where these deceptions take place.
The confidence man himself is the most notable character. He is the central figure who drives the plot with his various deceptions. He is a complex character, always changing his guise to fool different people.
There are also the victims of the confidence man. For example, the old man who gets tricked in one of the early encounters. Each victim represents a different aspect of human nature that can be exploited, such as kindness or greed.