Characters

• Robert Langdon: A professor of symbology at Harvard University and the protagonist of the novel.
• Mal'akh: A Mason whose body is covered with tattoos and the novel's main antagonist. He is revealed by the end of the story to be Zachary Solomon, the estranged son of Peter Solomon, long-believed to be dead, whose appearance was made unrecognizable to his family, in part due to the use of steroids. Zachary sees himself as a physical manifestation of the angel Moloch, as he worshipped the Black Arts in order to grow stronger and he performed numerous aspects of black magic which allowed the angel to enter his body. Mal'akh is the Hebrew word for 'angel'. Throughout the book, he also uses the name Dr. Christopher Abaddon to gain his father's trust, and Andros Dareios, a name he used while hiding out in Greece before the book's events. Of note, he is the first antagonist in the Robert Langdon series who serves as both the killer and the mastermind of events.
• Peter Solomon: A Smithsonian secretary, billionaire philanthropist, Freemason, father of Zachary Solomon, and close friend of Robert Langdon. His kidnapping sets into motion Langdon's race to find the Mason's Pyramid and the Lost Symbol.
• Katherine Solomon: Noetic scientist, sister of Peter Solomon, aunt of Zachary Solomon.
• Isabel Solomon: mother of Peter and Katherine Solomon, grandmother of Zachary Solomon. She was killed ten years before the events of the book by Zachary, disguised as Andros Dareios.
• Warren Bellamy: Architect of the Capitol and fellow Freemason to Peter Solomon. He aids Langdon and Katherine Solomon by helping them escape from Inoue Sato, briefly suspecting her of helping Mal'akh, but he later learns that he and Sato are on the same side.
• Inoue Sato: Director of CIA's Office of Security, from whom Langdon must flee after she accuses him of criminal acts.
• Trent Anderson: Capitol police chief.

                                Robert Langdon