Like his counterpart, the mirror Kirk was captain of the Starship Enterprise. Like most of his contemporaries, the mirror Kirk was a violent and sadistic man who engaged in a near-endless campaign of terror against the other species of the galaxy. He murdered Captain Pike to gain command of the ISS Enterprise. His missions included ending the Gorlan uprising by destroying the rebel home planet and executing 5,000 colonists on Vega IX. Kirk maintained his position largely through the use of the Tantalus field, a device which allowed Kirk to disintegrate anybody on the Enterprise at the touch of a button. In 2268 Kirk and several of his officers were exchanged with their counterparts from our universe by a transporter accident. He was unable to function in our universe because he could not cope with being on an Enterprise which functioned along civilised lines. Thanks to the efforts of the Enterprise crew, Kirk and his officers were returned to their proper place. [1]