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Dmitri

From X-Files Wiki

Dimitri (played by Alex Shostak, Jr.) was a boy from Kazakhstan who witnessed the massacre of forty-one abductees committed by a group of faceless aliens. Dimitri was discovered by Alex Krycek and imprisoned in a Tunguska gulag Dmitri was subjected to tests with black oil following intense disfigurement of his face, which was found to be an effective deterrent against the oil. Krycek brought Dmitri to the United States as part of his revenge plot against the Syndicate. (TXF: "Patient X")

Hosts Infected by Black Oil
Primitive human Kyle Sanford WWII Pilot Bernard Gauthier
Joan Gauthier Alex Krycek 2nd Customs Officer Dr. Sacks
Fox Mulder Auntie Janet Dmitri Marita Covarrubias
Stevie Richardson Danny T.C. Glenn
Sal Dana Scully Sandy Ed Dell
Bo Taylor Simon de la Cruz (immune) Yuri Volkov