Lieutenant Kyle was the transporter chief on board the original Enterprise (NCC-1701). He also served as engineering assistant, and was called upon to man the science station on one occasion when Spock was on the planet Pollux IV.Kyle was on duty as transporter chief after the Enterprise was accidentally thrown back into Earth's 20th century. He was in the transporter room when John Christopher entered, pointed a phaser at him, and demanded to be beamed back to Earth. Christopher was immobilized by Kirk before any harm was done. Kyle later stood by in the transporter room while Kirk and Sulu beamed down to the airbase to retrieve the US military's data on the Enterprise. After inadvertently beaming up an Air Police sergeant, Kyle was given the duty of watching the officer. After beaming down a second landing party, Kyle asked the sergeant if he was hungry, and got him some chicken soup from the food slot.Kyle was also on duty in the transporter room when he was approached by Marla McGivers, who pointed a phaser at him and told him to move away from the transporter console. As he moved away, Khan Noonien Singh came up from behind and incapacitated him. He was later incapacitated by Leonard McCoy after the delusional McCoy received an accidental overdose of cordrazine. Kyle was also manning the transporter when Kirk, McCoy, Scott, and Uhura were beamed up in the middle of an ion storm. His mirror universe counterpart was also at the controls.Kyle eventually was promoted to Commander, and served as communications officer on board the Reliant during the second encounter with Khan Noonian Singh. In 2285, Kyle was stranded on the surface of Ceti Alpha V when Khan Noonien Singh commandeered the Reliant. He and the rest of the Reliant crew, along with the surviving children of Khan's people, were later saved by the USS Enterprise following the latter ship's escape from the Mutara Nebula. Show less «