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Vienen is the eighteenth episode of the eighth season of The X-Files, and the one hundred seventy-ninth episode overall.
Guest Stars: Mitch Pileggi (Assistant Director Walter Skinner), Miguel Sandoval (Martin Ortega), Casey Biggs (Saksa), Gregory Norman Cruz (Diego Garza), James Pickens Jr. (Deputy Director Kersh), M.C. Gainey (Bo Taylor), Lee Reherman (Yuri)