Johnson is a Special FBI Agent in Los Angeles, California. He is a Vietnam Veteran.
During the events of Die Hard (1988) played by Robert Davi
As the hostage situation at Nakatomi Plaza escalates, Little Johnson introduces himself and Big Johnson to Dwayne T. Robinson. Big Johnson argues with a City Engineer and a City Worker about shutting the local power off. City Worker eventually does it when Big Johnson threatens to have him fired. As they fly their attack helicopter towards the building, Little Johnson asks Big Johnson what percentage of the hostages will survive and Big Jonson tells him 75-80 percent. An explosion blows the helicopter out of the sky, killing Big and Small Johnson.