His wheelchair contains electronic gadgets such as a computer, telephone, pager, video camera, and a gun. He is feared at CERN despite his paralysis. Maximilian Kohler: The director of CERN.He dies after being pushed from a balcony by Langdon at Castel Sant'Angelo and breaking his back on a pile of cannonballs below. He murders Leonardo Vetra, the Preferiti, and Commander Olivetti. He is of Middle Eastern origin and displays his sadistic lust for women throughout the novel. Hassassin: The killer hired by Janus to fulfill his plans.Chartrand, who was under the impression that Rocher was an Illuminatus. He is contacted by Maximilian Kohler about his knowledge on the real cause of the events.

Captain Elias Rocher: The second-in-command after Commander Olivetti.

He is killed by the assassin at the church of Santa Maria della Vittoria. He, along with other Swiss Guards, searches desperately for the missing antimatter hidden somewhere in the Vatican. He is initially skeptical about the claims of Langdon and Vittoria until he talks with the assassin.

Commander Ernesto Olivetti: The commandant of the Swiss Guard.

He was the Devil's Advocate for the late pope.

Cardinal Saverio Mortati: The most senior cardinal in the conclave, and the current Dean of the College of Cardinals.

His code name for dealing with the assassin is 'Janus,' taken from the two-faced Roman god of beginnings and ends. He murdered the pope, who is later revealed to have been his biological father.

Camerlengo Carlo Ventresca: The Camerlengo (papal chamberlain) during the conclave.

The reader learns early in the novel that Vittoria worked with her father in their research of antimatter. Her research focuses on biology and physics.

Vittoria Vetra: The adopted daughter of Vetra.

He is also the adoptive father of Vittoria. He is researching on antimatter when he is murdered by the assassin.

Leonardo Vetra: A scientist working at CERN and a priest.

He is described as wearing a Harris Tweed jacket, a turtleneck sweater, and a pair of chino pants. He is flown to CERN to help investigate the murder of Leonardo Vetra. Robert Langdon: A professor of symbology at Harvard University and the protagonist of the novel.Home Angels and Demons Wikipedia: Characters

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