Christabel is the pious and devoted daughter of Sir Leoline, living in Langdale Hall. Defined by her innocence and deep religious faith, she frequently prays for her betrothed knight. After discovering a mysterious woman in the woods, she demonstrates chivalric duty by offering hospitality, placing herself in an ambiguous and vulnerable position.

Geraldine is a mysterious, pale woman who claims to have been abducted by five knights and abandoned in the woods. Possessing an otherworldly beauty and supernatural abilities, she manipulates those around her while showing an aversion to religious symbols and thresholds. She commands hidden power and disrupts the natural order of the castle.

Sir Leoline is an aging baron and former knight errant who rules over Langdale Hall. He remains deeply consumed by grief for his late wife, who died giving birth to Christabel. When presented with a guest connected to his past, his desire to rekindle old bonds and fulfill knightly duties blinds him to impending supernatural threats.

Bracy is the resident bard at Langdale Hall. Sensitive to the spiritual and natural environment, he experiences disturbing prophetic dreams at the midnight hour. He attempts to use music and his awareness of the supernatural to protect the castle and its inhabitants from unholy presences.

The late wife of Sir Leoline, who died the hour Christabel was born. She exists as a lingering protective presence over her daughter. Bound by a prophecy involving the castle bell, her spirit attempts to guard Christabel's room but is challenged by darker magical forces.

Lord Roland is a nobleman who resides in a castle near Scotland. Long ago, he was the closest friend of Sir Leoline until vanity, rumors, and a fierce argument drove them apart. Though he does not immediately appear, his past relationship with Sir Leoline serves as a powerful political and emotional lever in Langdale Hall.