* Mr. Flaherty: Patrick's father, a blacksmith.
* Mrs. Flaherty: Patrick's mother, a homemaker.
* Margaret Flaherty: Patrick's older sister, who is married to a farmer.
* Michael Flaherty: Patrick's older brother, who is a sailor.
* Mary Flaherty: Patrick's younger sister, who is a nun.
* Sean Flaherty: Patrick's younger brother, who is a troublemaker.
* Bridget Flaherty: Patrick's youngest sister, who is a baby.
* Mr. O'Leary: Patrick's blacksmith master.
* Mrs. O'Leary: Patrick's blacksmith mistress.
* Timothy O'Leary: Patrick's blacksmith apprentice friend.
* Molly Maguire: Patrick's blacksmith apprentice friend.
* Father Callahan: The local priest.
* Miss Murphy: The local schoolteacher.
* Mr. Jones: The local farmer.
* Mrs. Jones: The local farmer's wife.
* Billy Jones: The local farmer's son.
* Sally Jones: The local farmer's daughter.
* Old Man Jenkins: The local hermit.
* The Leprechaun: A magical creature who gives Patrick a pot of gold.
* The Banshee: A female spirit who wails when someone is about to die.
* The Fairy Queen: The ruler of the fairies, who helps Patrick on his journey.