Real Name: N/A
Occupation: Criminal
Marital Status: Single
Base of Operations: Gotham City
Height: N/A
Weight: N/A
Eyes: N/A
Hair: N/A
First Appearance: Batman #417 (March 1988)
Created By: Jim Starlin, Jim Aparo

The KGBeast was killing certain people in Gotham, the last of whom was supposed to be the President of the United States--Ronald Reagan, at the time--during his visit to the city. During an early encounter between KGBeast and Batman, KGBeast pounded Batman and ran only because he thought Batman had back-up.

Batman realized that that error saved his life, and chased KGBeast across the rooftops, knowing that he had to be more careful. Batman could barely keep up, and after losing track of him after being unable to make a certain jump, thought to himself that "I've finally encountered somebody who's better at this than I am."

During a later encounter, Batman caught KGBeast's wrist in a loop of the Batrope. He figured he'd just hang there until somebody showed up to arrest KGBeast. However, rather than be captured, KGBeast cut off his own hand with an ax.

Finally, Batman and Commissioner Gordon consulted Reagan and sneaked him into the city, and into his destination building, without the knowledge of the Secret Service agents, one of whom they thought, a spy.

Batman chased KGBeast through the sewers until he entered a room with no other exit. Batman admitted that, in the past, he would have felt the need to fight his opponent, but he was a bit wiser, and merely locked him in the room. Batman later informed the police that the KGBeast was trapped (presumably waiting long enough for Knyazev to have suffocated). Thought the exact details of his escape are unknown, the KGBeast did escape (or escaped police custody) and later ran into Robin and the Huntress, who defeated him but did not capture him.

KGBeast was thrown from a roof by a man thought to be Two-Face, after the Beast botched an assassination. His lifeless body was later found by the police, his death caused by two gunshots to the head. Two-Face appears to be innocent in the murder; the killer seems to be a man hired by the Great White Shark.