The Baron
J6's former host
Once a host to J6, the Baron seeks revenge over their unfinished bargain. He says J6 left before saving the woman the Baron loved, who died afterward. He offers the Hero the Hyperium and its weapons in exchange for killing J6. If the Hero spares J6, H.A.L. ejects the Baron into space. In the alternate shooting account, the Baron withholds the promised reward.