In Making 'Enter the Matrix', Ghost is described by the Wachowski brothers as an "ascetic Buddhist killer". A student of philosophy, he quotes and/or refers to Hume, Kierkegaard, William James, and Nietzsche. Ghost's name may be a reference to the phrase "ghost in the machine", which describes the concept of mind-body dualism.
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This article contains plot details about an upcoming episode.
As seen in Enter the Matrix, Ghost and Trinity refer to each other as brother and sister, as they were unplugged from the Matrix on the same day. Ghost's romantic feelings for Trinity are unrequited, since she is in love with Neo. Ghost serves on the Logos alongside his captain, Niobe, and Operator, Sparks.
Ghost is known to be the best gunner in the fleet, and the best person to have riding shotgun during a car chase. He and Niobe have some of the same parts in the game. They mostly have different sides to the story.