Jack Miller is a minor character in Syphon Filter: Dark Mirror.
Jack Miller, an undercover operative for the NSA, has had most of his background classified and sealed from inter-agency access. Information known to the IPCA indicates that Miller was one of several operatives sent to monitor the Dark Mirror project in development at KemSynth Petroleum in northern Alaska. He was also familiar with Commander-in-Chief Gabriel Logan.
Miller's attire suggested a position within the company as a facility worker. Whether all NSA operatives reported to fellow agent and foreman Malcolm Freeman is unknown, as is the possibility of Red Section targeting him because of his undercover status. Logan discovered the body of Miller in a section of the KemSynth plant patrolled by the squadrons of Red Jack, suggesting the unit was responsible for his murder.