In the 1997 film 'Con Air', what is the name of the convict leader played by John Malkovich?

In the 1997 film Con Air, John Malkovich plays the convict leader Cyrus “The Virus” Grissom. Cyrus is the intelligent, manipulative criminal who organizes the hijacking of the prison transport aircraft.

The film follows Cameron Poe, a paroled former Army Ranger, aboard a plane carrying dangerous inmates to a supermax prison. During the flight, Cyrus and other prisoners seize control, intending to reach a destination beyond the authorities’ immediate reach. His nickname reflects both his reputation and the threat he poses to any institution containing him.

Several answer choices are also prisoners in the film, which can cause confusion. Pinball Parker is a low-level inmate whose actions help create the takeover opportunity, Billy Bedlam is a mass murderer, and Garland Greene is a notorious serial killer. Malkovich’s Cyrus is the central mastermind and leader of the escape plot, making the full name the clearest canonical answer.