* The old man: The protagonist of the story, an old man who lives in a small town and spends his days fishing at a nearby bridge. He is a kind and gentle man who is respected by the townspeople.
* The boy: The old man's friend and confidant. The boy is a young boy who often visits the old man at the bridge and listens to his stories. He is a curious and intelligent child who is eager to learn.
* The dog: The old man's loyal companion, a dog who follows him everywhere he goes. The dog is a protective and loving animal who is always there for the old man.
Minor Characters
* The mayor: The mayor of the small town where the old man lives. The mayor is a corrupt and greedy man who cares only about his own interests.
* The townspeople: The people who live in the small town. They are a kind and friendly group of people who are always willing to help each other out.
* The tourists: Tourists who visit the small town from time to time. They are often amazed by the old man's stories and his connection with nature.