Alias

An alias, code name, or cover name was a name chosen by an individual for the purpose of concealing or obscuring their true identity.

To conceal the fact that he was immortal, Akharin went by a number of different aliases, some famous, others obscure. 

While chasing a fugitive Barry Waddle, aka a future version of Arne Darvin, who was posing as a Human in both 2268 (Darvin) and 2373 (Waddle), Jadzia Dax used make-up to cover her Trill spots, thereby posing as a Human or other species of similar appearance. Odo, whose species was unknown to the Alpha Quadrant at the time, was also pretending to be something other than what he was. 

A Romulan identity was assumed by James T. Kirk for the purposes of seizing a cloaking device onboard a Romulan flagship later that year. Doctor Leonard McCoy altered his physical appearance to enable him to blend in following the 's apparent death caused by Spock's use of the Vulcan death grip. When confronted by a guard, he claimed to have escaped the USS Enterprise (NCC-1701) with important information for Sub-commander Tal. He subsequently subdued two officers and beamed off the flagship. Later, his true identity was revealed to the commander when she was beamed aboard the Enterprise. 

"Gary Seven" was a code name. 

The con artist posing as was known by twenty-three aliases in the area of Ventax II alone, a fact her crew divulged to Jean-Luc Picard in 2367. 

In 2371, Quark discovered that his mother had been conducting business transactions across the Ferengi Alliance using dozens of different aliases. 

James T. Kirk

 * Baroner
 * Kirok

Kira Nerys

 * Luma Rahl

Miles O'Brien

 * Connelly
 * Pahash

Odo

 * Kodrak

Benjamin Sisko

 * Jodmos