Marrok was a mysterious Force-sensitive humanoid warrior and mercenary who once served in the Inquisitorius of the Galactic Empire. After the Imperial Era, the former Inquisitor was hired by the Nightsister Morgan Elsbeth. During his time in Morgan Elsbeth's forces, Marrok worked with other Force-sensitive mercenaries—former General Baylan Skoll of the Jedi Order, and his apprentice Shin Hati.