Bullock

A member of Species 8472 in the role of Admiral Bullock.

In the mid-2370s, Admiral Bullock was the role played by a member of Species 8472 in the training simulation on the Terrasphere 8, designed to accurately simulate Earth. "Bullock" was a high-ranking member of Species 8472 who reported directly to "Boothby."

In 2375, the USS Voyager discovered the terrasphere, and sent Commander Chakotay to investigate. "Bullock" welcomed new recruits, assisted by Lieutenant Kinis.

Later, after Species 8472 confirmed that they'd been discovered, Bullock reported to Boothby that Voyager was approaching, and charged the biosphere's weapons. When the two tried searching for a diplomatic answer, he was sent, along with Boothby and Valerie Archer. His stance was firmly that the Federation couldn't be trusted, even after Boothby had been convinced. After a truce was reached, he had his assistant, Kinis, give Neelix a tour, while he personally showed Tuvok around before Voyager left. (VOY: "In the Flesh")

Admiral Bullock was played by Tucker Smallwood.

It is unclear if there was a real Starfleet Admiral Bullock or if the persona was created by Species 8472.