Sergeant Damien is a demon drill sergeant who formerly ran the Drill Demon random event. He kidnapped random players, bringing them to a large military training area and making them do exercises to earn their freedom. He was a harsh soldier, openly insulting those who didn't follow his instructions and performed incorrect actions.
Sergeant Damien has since retired from his duties after the removal of Random events and resides in the circus of Balthazar Beauregard, helping out as a handyman as he and Balthazar were from the same unit during the war.
The remnants of his training area, most prominently the run-on-the-spot sign, can be found in the Mysterious Old Man's basement.
- Sergeant Damien holds numerous awards and accolades:
- Demonic Medal of Combat
- Underworld Medal
- Bloodlines Achievement
- Most Evil Demon-of-the-Year 2004 Award
- Best Shopper 2001
- He is also the record holder for most number of Star Jumps.
- Some of his dialogue makes reference to the Drill Sergeant in the opening scenes of the 1987 movie Full Metal Jacket.
- His examine text is a reference to the "drill instructor from hell" trope, of a military trainer whose teaching method usually involves shouted degradation and physical punishments. Sergeant Damien's insults and demands for physical exercises also reflect this.