Flanksteak

Flanksteak is the leader of the Bloodshot bandit gang. He delivers several voice messages throughout the portion of the story for which the Bloodshots are a major threat. Flanksteak's men have captured Roland, and he believes that Hyperion will pay them in exchange for his custody. However, the corporation instead sends its robots to destroy the Bloodshots and take Roland by force, and Flanksteak is killed by a Loader while attempting to negotiate a price with it.

Flanksteak is the only somewhat significant antagonist in the Borderlands games who is not only never fought but never even seen in person.