People
- — Victoria Ocampo
- — Captain Liddell Hart
- — Dr. Yu Tsun
- — Dr. Yu Tsun is a Chinese professor living in England during World War I. He is also a German spy. Yu Tsun takes on the role of narrator of the story as the original narrator provides Yu Tsun's statement to the reader.
- — Captain Richard Madden
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- — Captain Richard Madden is an Irishman who works for English intelligence. After he kills Yu Tsun's contact, Viktor Runeberg, he stalks Yu Tsun to prevent him from passing along the information.
- — The Chief
- — Englishman
- — Farmers
- — Woman dressed in mourning
- — Wounded soldier
- — Dr. Stephen Albert
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- — Dr. Stephen Albert is a noted sinologist, or student of Chinese language and culture. A former missionary in China, he is a student of the works of Yu Tsun's ancestor. Indeed, he has solved the mystery of the missing labyrinth, revealing that the novel of Ts'ui Pen is the labyrinth itself.
- — Ts'ui Pen
- — Hsi P'eng
- — Fang