Gregor Dosynski was a Russian mercenary agent and professional assassin under the codename of The Demon or NKVDemon and was trained by the notorious agent known as KBGeast. His physical structure was altered in order to make him more resistant to pain and fatigue.
A follower of the communist teachings of Lenin, Stalin and Marx; The Demon sought the reformation of the Union of Soviet Socialist Republics back to the old principles of communism. After he learned that his mentor, the KGBeast was defeated by the American vigilante known as Batman, The Demon started a quest on his own country to kill Russian representatives that tried to make peace with the Western world.
After a series of murders, Russian agents asked for Batman's assistance against The Demon and the Dark Knight travelled to Russia, where he confronted The Demon on several occasions, but was outsmarted and defeated in almost all of them. The Demon claimed nine victims in his grand scheme of eliminating the "traitors" and his ultimate goal was to murder Russia's premier, Mikhail Gorbachev. In this last attempt, The Demon was stopped by the combined work of Batman and the Moscow Police Department. The Demon was shot to death by the law enforcers after Batman had defeated him and one of his own grenades blew his entire body, leaving nothing of The Demon behind.
- Superhuman Stamina and Durability: The NKVDemon's skin and bone-structure was artificially hardened and strengthened, granting him some form of invulnerability, and allowed him to exert himself at peak capacity for hours before fatigue begins to affect him. He can also hold his breath for a long amount of time, and is able to go without sleep, food or water for far longer than any human.
- Pain Resistance As the only side-effect of the steroids NKVDemon took, most of his pain-receptor nerves have been deadened making him immune to pain.
- Martial Arts and Military Protocol: In the Spetsnaz KGB, NKVDemon was highly trained in extreme methods of hand to hand combat and physically as well as mentally trained to deter, capture or kill hostile agents, saboteurs, bandits, and other criminal elements. He would also have received training in reconnaissance and sabotage.
- Disguise: NKVDemon's ability to impersonate others was sufficient to fool even Batman.
- Weaponry: Trained in the usage of every weapon imaginable, whether advanced or archaic. Also competent in the use of explosives.
- 5 Appearances of Gregor Dosynski (New Earth)
- 2 Images featuring Gregor Dosynski (New Earth)
- Quotations by or about Gregor Dosynski (New Earth)
- Character Gallery: Gregor Dosynski (New Earth)