Born on Oplovis in 48 BBY, Drommel joined the Imperial Navy and became a protégé of Grand Moff Tarkin. By 4 ABY Fleet Admiral Drommel commanded the Super Star Destroyer Guardian and was stationed at Imperial Center. After news of the Imperial defeat at the Battle of Endor and the death of Emperor Palpatine reached him, he fled with his command to his homeworld and declared himself to be a warlord.
After his defeat of the Battle of Tantive V, he withdrew his fleet to Soullex, where he was assassinated by his subordinate, Colonel Gastos Niovi after the younger officer realized that Drommel was no longer serving the good of the Galactic Empire. Niovi then surrendered the fleet to the New Republic, in the person of Captain Volahn of the Equity.
- Wanted by Cracken
- "Recon & Report: The Journey to Coruscant"—Star Wars Adventure Journal 2
- Cracken's Threat Dossier
- "ISB Intercepts"—Star Wars Adventure Journal 15
- The Essential Chronology
- Rebellion Era Sourcebook
- The New Essential Chronology
- The Complete Star Wars Encyclopedia
- The Essential Atlas
- Galaxy of Intrigue