United States armed forces personnel The following is a list of United States armed forces personnel : Unnamed armed forces personnel . Air Force . Omaha Base captain . A USAF captain was on duty supervising the RADAR technician , , when the was detected over Earth in 1969 . The captain telephone d Air Defense Command to report the sighting of the starship , referring to it as a UFO . ( ) Air Force guard . This Air Force guard watched over Colonel Fellini ' s office , while he was interrogating Kirk . He greeted Major John Christopher when he approached the door , before Sulu knocked him unconscious . He held the rank of airmen basic , the lowest rank in the Air Force . ( ) Air policeman # 1 . This Air policeman accompanied Colonel Fellini when Kirk and Sulu inadvertently triggered a silent alarm while retrieving tapes so that there would be no record of the Enterprise traveling back in time . Spock rescued Kirk by overpowering Fellini and the policeman . He held the rank of airmen basic , the lowest rank in the Air Force . ( ) Air policeman # 2 . This air policeman also accompanied Colonel Fellini to check the silent alarm during Kirk and Sulu ' s break - in . He held the rank of airmen basic , the lowest rank in the Air Force . ( ) Air police staff sergeant . The air police staff sergeant was a non - commissioned officer stationed at the 498th Air Base in Omaha , Nebraska in 1968 . His job was to enforce laws and regulations on an air force base , and to supervise other enlisted men performing the same tasks . An accident catapulted the back to the year 1969 . Matters were further complicated when it destroyed an interceptor aircraft , and brought the pilot aboard . Forced to return him to avoid damage to the timeline , Kirk and Sulu sought a way to make his report less credible . To do this , they beamed into his base to retrieve the hard evidence of their presence . While they were retrieving the audio recordings , they were surprised by an air police sergeant , who took their equipment , inadvertently activating the emergency signal . Spock immediately beamed the source of the beacon – the sergeant – to the " Enterprise " , further endangering the timeline and complicating the mission . Aboard ship , the sergeant was clearly overwhelmed by what he saw around him , and never left the transporter room . A helpful Kyle even served him chicken soup there . The sergeant was returned to his proper time and place during the slingshot effect experiment that returned the " Enterprise " to its proper time and place , effectively erasing the history in which he visited the ship . ( ) US 498th Airbase personnel . US 498th Airbase personnel at the hangar and tarmac when Captain John Christopher intercepted the over the 498th Air Base in Omaha , Nebraska in 1969 . ( ) Army . MPs . These MPs were stationed at the United States Army Air Forces base including Hangar 18 on Earth in 1947 . The first MP guarded the Ferengi Quark , Rom , and Nog inside the viewing room and was knocked unconscious by Odo . The other two guards accompanied General Denning when they stopped Faith Garland , Jeff Carlson , and the Ferengi outside of the building but were also knocked out by Odo . ( ) MP guards . MP guards stood watch outside the building Quark , Rom , and Nog were held in . ( ) US Army Air Forces soldier . A US Army Air Forces soldier was present when several men and women in US military uniforms stood on the other side of a two - way mirror in a lab , watching Quark , Rom , and Nog who had gone back in time and crashed near Roswell in 1947 . ( ) Navy . Travers ' husband . In an alternate timeline created by the Temporal Cold War , this man served aboard a destroyer in the Pacific Ocean during . He was married to Alicia Travers , who was a resistance fighter for the American Resistance in New York City . ( ) Electronics technician # 1 . This electronics technician held the rank of petty officer while serving aboard the in 1986 . ( ) Electronics technician # 2 . This electronics technician served aboard the in 1986 . ( )