Wendell Greer

From Memory Alpha, the free Star Trek reference

Wendell Greer was the persona taken by Luther Sloan, in order to attend a joint Federation-Romulan conference about the Dominion War on Romulus.

According to his records, Greer was the Assistant Director of the Federation Department of Cartography, a mid-level bureaucrat for almost fifteen years. (DS9: "Inter Arma Enim Silent Leges")