Nikola was a Soviet scientist imprisoned by Leviathan.
Nikola was a brilliant scientist who was captured and imprisoned by Leviathan. He had a fragile mind which needed to be kept under control, so Johann Fennhoff was ordered to take care of his mind. Nikola was rescued by Peggy Carter, Jack Thompson and the Howling Commandos. He enthusiastically explained the project he was working with Howard Stark's design for a Photonic Amplifier and said that although the weapons were Stark's designs, Stark was not involved with the plans. He was broken out of his cell and he and Fennhoff made their escape with Carter. They were attacked by their guards however and Nikola struggled to cope under the pressure.
As the team waited for Dum Dum Dugan to help them escape, they engaged in the fierce gunbattle with the soldiers. Nikola panicked and took Happy Sam Sawyer hostage, stealing a gun pleading with the guards to let him go free. Carter drew her gun on Nikola and threatened to shoot him if he did not free the soldier. Fennhoff tried to calm him down but Nikola did not listen or lower his gun. In the end, Fennhoff was forced to shoot Nikola through the heart, killing him instantly.
- Genius Level Intellect: Although his mind was fragile, Nikola was able to understand the most complex designs and build incredible weapons.
- Master Engineer: Leviathan kidnapped Nikola when the organization needed someone to understand and duplicate the work of the master engineer Howard Stark. Nikola was able to break down the schematics of the Photonic Amplifier and explain the advanced scientific workings in a way that others could comprehend.
- Johann Fennhoff - Killer
- Strategic Scientific Reserve - Temporary Allies
- Howling Commandos - Temporary Allies