Gerrard was a Human male who held the rank of captain within the Imperial Military. He served the reconstituted Sith Empire during the Cold War era, a period of tension with the Galactic Republic. This dark-skinned Human, characterized by black eyes and black hair styled in striped patterns, was assigned to Watcher One of Imperial Intelligence. His mission was to locate the Republic scientist Doctor Nasan Godera on the planet of Taris in the year 3643 BBY. He was equipped with a blaster rifle for combat and wore the standard armor issued to Imperial soldiers. Tragically, Captain Gerrard, along with numerous fellow soldiers, met their death during a raid on one of Godera's research facilities. This occurred when a young Jedi Knight, who was also in pursuit of Godera, encountered the Imperial forces within the subterranean laboratory.
Gerrard's character was featured in the Jedi Knight storyline titled "Catching Up With Watcher One" within Star Wars: The Old Republic. This massively multiplayer online roleplaying video game was launched by BioWare in 2011, and Gerrard appears as a notable non-player character (NPC) within Doctor Godera's laboratory.