Sir Orfeo is a generous monarch of England who traces his lineage back to ancient figures like Pluto and Juno. Beyond his royal administrative duties, his true passion and defining skill is playing the harp, a talent that creates heavenly melodies and brings immense joy to his listeners. He rules his kingdom with a sense of harmony and shares a deeply devoted, peaceful marriage with his wife, Queen Heurodis, until an unnatural threat disrupts their court.

Heurodis is the Queen of England and the beloved wife of Sir Orfeo. Known for her usual quiet, sweet, and graceful demeanor, she lives a comfortable life in the royal court at Winchester. Her tranquil existence shatters when she experiences a terrifying dream vision involving a supernatural world, causing her immense psychological distress and physical agitation.

The Fairy King is the enigmatic and ruthless ruler of a supernatural dimension that exists parallel to the human world. He wears a dazzling crown of light made from a single gem and commands a retinue of otherworldly knights and ladies. He issues sudden, absolute demands without explanation and uses the threat of violent bodily harm to ensure his targets comply.

The Steward is a trusted noble in Sir Orfeo's royal household. As a high-ranking administrator, he holds significant responsibility for maintaining order in Winchester and serves as the king's primary deputy whenever Orfeo cannot directly manage state affairs.