# The Mystery of the Yellow Room — Character guide

> Key figures in The Mystery of the Yellow Room by Gaston Leroux.

- [Joseph Rouletabille](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/joseph_rouletabille.md): Young journalist and amateur detective investigating the mystery at the Glandier estate.
- [Mademoiselle Stangerson](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/mademoiselle_stangerson.md): The victim of an attempted murder in the locked Yellow Room; daughter of Professor Stangerson.
- [Frédéric Larsan](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/frederic_larsan.md): Famous detective from the Sûreté who competes with Rouletabille to solve the case.
- [Monsieur Robert Darzac](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/robert_darzac.md): Fiancé of Mademoiselle Stangerson and a suspect in the attack.
- [Professor Stangerson](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/professor_stangerson.md): Renowned scientist and father of Mademoiselle Stangerson, living at the Glandier estate.
- [Daddy Jacques](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/daddy_jacques.md): Old servant and caretaker at the Château du Glandier.
- [Monsieur de Marquet](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/monsieur_de_marquet.md): Examining magistrate in charge of the investigation.
- [Mr. Arthur W. Rance](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/arthur_rance.md): American who was present at the time of the attack; a former suitor of Mathilde.
- [Ballmeyer](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/ballmeyer.md): Notorious criminal whose identity becomes central to the mystery.
- [Sainclair](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/sainclair.md): Friend and chronicler of Rouletabille; the narrator of the story.
- [Daddy Mathieu](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/daddy_mathieu.md): Local farmer and witness at the Glandier estate.
- [Madame Mathieu](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/madame_mathieu.md): Wife of Daddy Mathieu; provides testimony about the night of the crime.
- [Madame Bernier](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/madame_bernier.md): Wife of Daddy Bernier; also works at the château.
- [Mother Angenoux](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/mother_angenoux.md): Local woman who assists with household matters at the château.
- [Maître Henri Robert](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/maitre_henri_robert.md): Lawyer who appears during the legal proceedings.
- [Monsieur de Maleine](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/monsieur_maleine.md): Neighbor and acquaintance of the Stangerson family.
- [The Green Man](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/the_green_man.md): Mysterious figure seen near the château; possibly the murderer.
- [Monsieur Dax](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/monsieur_dax.md): Police official involved in the investigation.
- [Sylvia](https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters/sylvia.md): A woman mentioned in connection with Ballmeyer's past.

HTML index: https://www.betterreads.online/discover/the_mystery_of_the_yellow_room_se/characters