|Date of death:||2000|
|Cause of death:||Neck broken by Sean Ambrose|
|Affiliation:||John C. McCloy|
Dr. Sergei Gradski
|Played by:||Rade Serbedzija|
|First appearance:||Mission: Impossible II|
|Last appearance:||Mission: Impossible II|
Dr. Vladimir Nekhorvich is a Russian scientist working for pharmaceutical firm Biocyte in Sydney, Australia.
In the video, Dr. Nekhorvich gives "Dmitri", which is an alias for an field agent of Impossible Mission Force; Ethan Hunt when he saved the doctor's life, 20 hours to come to Sydney just as he flies to Atlanta, Georgia in order to go to the Center of Disease Control. It is later revealed that he infected himself with a deadly synthetic virus he created; designated "Chimera." In the middle of the flight, a former IMF agent, Sean Ambrose, who used a latex mask disguise himself as Ethan, killed the doctor and retrieve his bag. Then, Ambrose escapes to his designated landing point,"Checkpoint Charlie", with his right-hand man, Hugh Stamp, along with two of his operatives, Wallis and Ulrich, just as the plane crashed in the Rocky Mountains.