It is implied Alucard is the most powerful vampire currently in existence; he has a vast range of supernatural techniques including enhanced strength, which allows him to wield pistols too heavy for humans to handle. He fights with ferocity and often extreme cruelty, rarely shooting to kill until his target has been disabled and humiliated, while frequently giving his enemies more than one chance to kill him before retaliating. He admits he is a "monster".

Major General Olivier Mira Armstrong is Alex Louis Armstrong's older sister. She is in charge of Briggs, the northern military border. She scoffs at the concept of "equivalent exchange" and believes "survival of the fittest" is the only law in life. Her subordinates are loyal, but if it ensured the survival of Briggs (or for the sake of the greater good), they are instructed to leave her to die if ever the need arose, and she wouldn't hold it against them.

One of her closest subordinates is Major Miles, a soldier whose grandfather was Ishvalan; he is of many bloods due to several inter-racial unions, beginning with his grandparents. It is possible that he is also part Xingese, but his Ishvalan blood is the most prominent.

Being the General of Briggs, Olivier has full command of the Fortress. She is also very skilled with her family heirloom sword which she uses unhesitatingly. She also seems to have some proficiency with tanks and artillery.