Sa-Gahnesaam was an Odib male that served as ambassador to the Isitri.

In 2270, Sa was responsible for convincing the Odib not to immediately wipe out the Isitri after the discovery of Berlis Aknista, a "troublesome mind". However, after he discovered, with the help of an informant, that the Isitri were lying about having contained Berlis he was forced to let the Isitri be destroyed and ordered the evacuation of the embassy and the Isitri loyal to the Odib. Unfortunately, Berlis was able to take over the Isitri before Sa left and he was killed by the Isitri he was evacuating. (TOS novel: Troublesome Minds)