Commander Wexler was a male human who served as the transporter chief at Buckingham Palace in London in 2379. He was stocky and strong and wore a goatee. When Koll Azernal interrupted Federation President Min Zife at a state dinner at Buckingham Palace to tell him that the Tezwans had threatened the Klingon border colony of QiV'ol, Azernal, Zife, and his security detail immediately went to the transporter room and Wexler transported them directly to the Palais de la Concorde in Paris. (TNG novel: A Time to Kill)