Igor Drenkov (Earth-616), Marvel Database

Igor was a Soviet spy sent to America to learn the secrets of the Bruce Banner's Gamma Bomb for future purposes of the Soviet Union. When Rick Jones drove out on the test field, Banner asked Igor to postpone the test while he got the kid to safety. Igor, hoping to be rid of Banner in order to steal his secrets, continued the test and the Gamma Bomb exploded, creating the Hulk. Later, when Bruce turned into the Hulk for the first time, he went to Banner's lab and found Igor looking for the Gamma

Igor Drenkov (Earth-13159), Marvel Database

Hulk - Wikipedia

Igor Drenkov (Earth-12041), Marvel Database

Igor Drenkov (Earth-616), Marvel Database

Category:Komitet Gosudarstvennoy Bezopasnosti (Earth-616)/Members, Marvel Database

Jab's Builds! (Kylun! Cerise! Necrom! Micromax! Pete Wisdom!) - Page 167 - Echoes of the Multiverse

Igor Drenkov (Character) - Comic Vine

Crimson Dynamo - Wikipedia

Jab's Builds! (Captain Britain! Roma! Merlyn! Saturnyne!) - Page 167 - Echoes of the Multiverse

Category:Killed by Igor Drenkov (Earth-616), Marvel Database

Red Guardian (Shostakov) Enemies - Comic Vine