Harron Tavus was a human male lieutenant and later commander in the Republic Special Forces

Republic Special Forces Division (Republic Army) Organization Galactic Republic (GGW, CW and GW)

who fought in the Great Galactic War. He was friends with and fought alongside Jedi Orgus Din during the offensive in the Minos Cluster. Tavus was present when the reconstituted Sith Empire attacked the capital world of Coruscant

Coruscant Planet

and again fought alongside Din to repel the invaders, though they were ultimately unsuccessful. After the Treaty of Coruscant was signed, officially ending the war, Tavus accompanied Din on a diplomatic mission to Balmorra

Balmorra Planet

, during which they rescued Satele Shan and SP-99 from an adrift escape pod.
As cold war skirmishes engulfed the galaxy Tavus, at that time field officer of the Havoc Squad

Havoc Squad (Republic Special Forces Division) Organization Galactic Republic (GGW, CW and GW)

, began to lose faith in the Galactic Republic. He was stationed on Ord Mantell

Ord Mantell Planet

during a violent civil war

Mantellian Separatist Crisis Event Cold War (3653BBY - 3642BBY)

, fighting the Imperial backed Mantellian Separatist Movement

Mantellian Separatists Organization Planetary and Sector

, where he and his squad prepared and carried out their defection to the Sith Empire.