The document summarizes the main characters in Gaston Leroux's novel The Phantom of the Opera, including the Opera Ghost Erik, the young singer Christine Daae, her childhood friend and love interest Raoul, and supporting characters like Madame and Meg Giry, La Charlotta, and The Persian. Character traits are provided for each character, with Erik described as cruel but also skillful and soft-hearted, and Christine as beautiful, hardworking, young, and kind.