A member of the Fifth Column and a friend to Willie and Howard. It is possible that, because being friends with Howard, Simon caused him to have sympathies for the Fifth Column.
During the Second Invasion, he survived Diana's purge of Fifth Column members and served as Willie's contact in the fleet, giving information whenever he could, but these acts left him paranoid of being followed by Diana's spies. He met Willie at an abandoned building to warn him of an imminent arrival of weapons to a secret location in the Open City of Los Angeles. Simon's fears of being followed prove to be warranted after telling Willie that Charles was bringing weapons into the open city; Willie got injured but escaped, while Simon was killed by two shocktroopers who entered the building.
Wen Howard learned of his death, he became very upset.