The Terror of Blue John Gap - Characters

Characters

• Dr. James Hardcastle - The hero of the story. A doctor who, while recovering from tuberculosis, discovers the mystery of Blue John Gap and bravely resolves to solve it alone when the world scorns him. While he emerged triumphant the ordeal left him a broken man. He died on February 4, 1908, at his Upper Coventry Flats in South Kensington.
• Armitage - A young sheep farmer. He was the one who first introduced Dr. Hardcastle to the sinister goings on around Blue John Gap. He later vanishes without a trace and is presumed to have been killed by the "Terror".
• The Miss Allerton's - Two elderly sister spinsters. They run the farm and inn where Hardcastle is sent to recover from his illness. They are described as quaint with hearts of gold.
• Dr. Mark Johnson - A friend of Professor Saunderson. Hardcastle turns to him for help and he promptly sent Hardcastle to Mr. Picton's asylum as a result.
• Professor Saunderson - Dr. Hardcastle's Doctor. He was the one who recommended Miss Allerton's farm as a place for Hardcastle to recover and apparently grew up there himself.
• Seaton - A friend of Dr. Hardcastle. Hardcastle addressed his notes of the events to him. Enquiry apparently failed to identify who Seaton actually was and his identity, and even existence, remained a mystery.