A centuries-old vampire residing in a ruined castle in Transylvania. He is a proud descendant of the warlike Huns, initially presenting himself to Jonathan Harker as an erudite and amiable nobleman. Beneath this hospitable exterior, he possesses supernatural strength, the ability to command animals, and a desire to hunt new victims. He seeks to relocate to London to establish a new feeding ground.

A diligent English solicitor who travels to Eastern Europe to broker a real estate deal. As a representative of modern Victorian rationality, he initially struggles to comprehend the horrifying reality of his host. He is observant and methodical, meticulously documenting his terrifying experiences in a journal that later proves essential to understanding the supernatural threat.

A practical schoolteacher engaged to Jonathan Harker. She represents incorruptible purity and Victorian idealism, acting as a supportive force for the men around her. She meticulously transcribes journals, letters, and newspaper clippings into a cohesive narrative that helps the group track their enemy.

A beautiful young woman from a wealthy family. She is highly sought after by multiple suitors but maintains a cheerful, innocent demeanor. Her tendency to sleepwalk makes her vulnerable to nocturnal dangers, and her sudden unexplainable illness forces her friends to seek specialized medical intervention.

A learned philosopher, scientist, and doctor from Amsterdam. Unlike his English colleagues, he embraces both modern medical science and ancient folklore. He acts as a father figure to the younger characters, guiding them through the terrifying realities of the supernatural threats they face with open-minded resourcefulness.

The administrator of a London mental asylum and a dedicated man of science. He evaluates the world through a strictly rational medical lens, carefully observing the strange behaviors of his institutionalized patients. He remains fiercely loyal to his friends, seeking outside help when conventional medicine fails to cure a sudden illness.

A disturbed patient at Doctor John Seward's asylum who obsessively consumes flies, spiders, and birds. He believes that absorbing other life forms will grant him strength and vitality. His erratic behavior fluctuates between polite lucidity and violent outbursts, often corresponding to the proximity of his supernatural master.

A wealthy English aristocrat who wins Lucy's hand in marriage. He is a brave and loyal man who eventually inherits the title of Lord Godalming. Despite his aristocratic status, he is deeply emotional and willing to do whatever is necessary to protect the woman he loves.

A wealthy American from Texas characterized by his slang and straightforward manner. He is an honorable, good-hearted man who accepts romantic defeat gracefully. He quickly joins the effort to protect his friends, bringing a practical, action-oriented approach to the group's struggles.

Lucy's mother. She is protective of her daughter but suffers from a weak heart. Her lack of knowledge regarding the supernatural inadvertently endangers Lucy during the medical treatments.

An elderly resident of Whitby who spends his time near the seaside cemetery. He initially disdains local superstitions but eventually admits his own fears regarding impending death.