Octavian Bloom was one of the leaders of HYDRA after the HYDRA Uprising. He was killed during S.H.I.E.L.D.'s Assassination of HYDRA Leaders, after being tricked into organising the deaths of the other leaders of HYDRA.
- "Thank you, Mr. Bloom, for hosting."
At the meeting of HYDRA's leadership, Bloom allowed an extra seat at the table; Daniel Whitehall was recently killed. The Sheikh, the Banker, the Baroness, and Doctor List, representing Wolfgang von Strucker, were in attendance and, with Bloom, regretted that there was an empty seat.
A leader to replace Daniel Whitehall had to be determined. Bloom, as well as the other guests, wanted the power and position of the deceased leader. Bloom told the guests that Sunil Bakshi was most likely a captive of S.H.I.E.L.D., though he had been groomed to take over the position. Doctor List realized that S.H.I.E.L.D. would use that opportunity to emerge from the shadows; he decided that whoever could destroy the organization before it made its move could lead that faction. Bloom and the others agreed.
- "This is warship, I'm free."
"Ah Mr. Bakshi, very good news."
"But we have a situation."
- ―Sunil Bakshi and Octavian Bloom
The next day, Bloom received a phonecall from Sunil Bakshi. After using code words to verify their identities, Bakshi informed Bloom that he had been freed from S.H.I.E.L.D. custody by a HYDRA mercenary and that he wanted to have a meeting, Bloom agreed and allowed him to come to his home.
- "We can't have in-fighting at a time of transition."
"We agree, and we promise to smooth this over as best as we can."
- ―Doctor List and Octavian Bloom
Once Sunil Bakshi arrived he explained to Bloom that a mercenary was on order to kill Bakshi to keep him from his place as American commander of HYDRA. Bloom called Doctor List in an attempted to learn if List sent the kill order; List assured him that he nor Baron Wolfgang von Strucker sent such an order.
Bloom and Bakshi felt that one of the other leaders, or more likely all of them, must be making a power move to eliminate the other contenders. Bloom sent kill orders to have the Banker, Baroness and the Sheikh assassinated. Sunil Bakshi requested to have the mercenary killed as well, as punishment for his own assassinated attempt; Bloom sent operatives to the SUV parked outside his mansion. Within minutes of the order being sent, the other heads of HYDRA were assassinated, leaving only von Strucker, Bloom, List and Bakshi as the current leaders of HYDRA.
The SUV carrying the mercenary was able to survive the attack and used defence methods to kill the HYDRA assassins, and then drove into the mansion. Suddenly, S.H.I.E.L.D. Agents Bobbi Morse and Lance Hunter burst into the room. Before either of them could react, their guards were shot and killed before Hunter fired his gun and Bloom received a single gunshot in the forehead, killing him instantly. With Bloom dead, HYDRA's leadership was in near ruins while Sunil Bakshi was taken back into S.H.I.E.L.D. custody and transferred to Glenn Talbot's prison.
- Baroness † - Target
- Banker † - Target
- Sheikh † - Target