Grollix was a male Zabrak

Zabrak Sentient Species

captain of the Galactic Republic Army

Republic Army Organization Galactic Republic (GGW, CW and GW)

during the conflict between the Galactic Republic and the Sith Empire. Around 3642 BBY he was stationed at the Outpost Zerek on the planet Hoth

Hoth Planet

, where he asked a team of Republic operatives

Republic Operatives Organization Temporary Unions

to deal with

Invisible Foes Event Cold War (3653BBY - 3642BBY)

a group of Sith assassins.
While on Hoth, Grollix wore officer uniform
A02.04 Officer uniform and was armed with electroblade
L3.a2.1 electroblade.