Guards are security guards at Nakatomi Plaza in Los Angeles, California.
During the events of Die Hard (1988) played by Rick Cicetti and Fred Lerner
John McClane goes up to one of the Guards and tells him he is there to see Holly Gennero McClane, and when the Guard shows him the computer directory to use, John notices Holly is using her maiden name. John is then directed to the 30th floor. Karl and Theo walk into the building and Karl shoots both of the Guards.