Larry Bullman

Larry A. Bullman was a research director assigned to Delta Labs Sector 2B on Mars during the events of Doom 3. He was the first to theorize that the mysterious Soul Cube was a weapon. He made an audio report documenting these findings. Dr. Betruger, however, was skeptical (or claimed to be skeptical) about Bullman's theory and told him not to discuss his findings with anyone. Two days later, Bullman received a message disguised as a Martian Buddy Spam email. The message warned Bullman that Betruger was planning to use the Soul Cube for his own purposes. The message urged Dr. Bullman not to let Betruger take possession of the Cube. It is unknown if Bullman ever saw this message (as it had been disguised as spam) or if he took it seriously. In any case, Betruger managed to get hold of the Soul Cube, which he subsequently took into Hell shortly before the demonic invasion. Bullman was likely killed in the attack since the player never meets him in the game.

Also not known is the identity of the person who sent Bullman the warning. It may have been Ian McCormick or Pierce Rogers since both had also been studying the Soul Cube and were suspicious of Betruger. Alternatively, it may have been a character that was never mentioned or heard of in the game.