Acolyte Trenox, affiliated with the dark side, served Count Dooku (Count of Serenno) as a Dark Acolyte throughout the Clone Wars conflict.
Sporting a bald head and clad entirely in black attire, Trenox brandished a red lightsaber. His training in Form II of lightsaber combat was personally overseen by Count Dooku.
During the Coruscant Insurrection amid the Clone Wars, Trenox aided Count Dooku in leading the Separatist armies. In the midst of the conflict, Trenox evaded Anakin Skywalker, seeking refuge at Bentho's Nightclub, situated within the city's lower levels. Dexter Jettster found himself in the underlevels when Trenox issued threats. The diner proprietor managed to elude the Acolyte. Following a brief confrontation with Anakin within the club, Trenox once again fled, boarding a speeder in an attempt to shake off the Jedi.
Subsequently, Trenox, alongside Count Dooku, infiltrated the Jedi Temple undetected. Engaging Anakin within the temple, Trenox ultimately met defeat at Skywalker's hands after an extended duel.
Trenox employed his lightsaber with a club-like style, using intimidating roars to unnerve his adversaries. With a mere nudge through the Force, he could topple Anakin Skywalker, briefly rendering him unconscious. Further, his raw power allowed him to breach Anakin's Form V. Furthermore, Dooku instructed Trenox in the more elegant Form II.