Jeff Gregg was played by Gerald Berns in the movie The Net.

He was the criminal mastermind of the praetorians, cyberterrorists who commit crimes, including murder, for their own ends. He always acts from a distance giving instructions to his accomplices like Ruth Marx and Jack Devlin and among these he murdered were Michael Bergstrom, Dale Hessman and Dr. Alan Champion.

He was arrested by the FBI after his criminal activities were exposed by Angela Bennett.

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