The X-Files/Via Negativa
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Via Negativa is the seventh episode of the eighth season of The X-Files, and the one hundred sixty-eighth episode overall.
Guest Stars: Mitch Pileggi (Assistant Director Walter Skinner), Christopher Jacobs (E.R. Doctor), Keith Szarabajka (Anthony Tipet), James Pickens Jr. (Deputy Director Kersh), Tom Braidwood (Frohike), Dean Haglund (Langly), Bruce Harwood (Byers), Kirk B.R. Woller (Agent Gene Crane), Grant Heslov (Dr. Andre Bormanis)