The Blood-Pack are one of the three chief mercenary groups operating in the Terminus Systems. Composed exclusively of Krogan and Vorcha underlings, the Blood Pack are typically psychotic and self-interested brutes and thugs who have also formed an alliance with the ambitious Krogan clan Weyrloc. They have operations throughout the Terminus Systems, many of which get disrupted by Commander Shepard and their allies during the fight to stop the Collectors.