Gen. Dmitri Polyakov
 

CIA code: Tophat and Roam

Polyakov was a general in the GRU military intelligence. He was recruited while at the United Nations in New York.

He gave the West precious information on Soviet missiles, nuclear strategy, chemical and biological warfare.

Polyakov was tried in secret, critical of the Soviet leadership to the end and sentenced to death.

He was arrested on July 7, 1986 and executed on March 15, 1988 with a bullet in the back of the head, then buried in an unmarked grave.

Dmitri Polyakov was one of the 25 agents betrayed by Ames