Sanchez

Origin: Doctor Who
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Species: Human
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Residence: David Street 3 (16-63)
Occupation: Former Military officer
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Import Date: Year 7 (+)

Sanchez was a US Army lieutenant general and a high-ranking UNIT officer.

Biography
After Major A Highway's reorganisation of UNIT's pan-territorial activites upon succeeding Major C Jones's role at UNIT's New York Liaison Base into a "pivotal single site operation", (PROSE: UNIT's New York Operation Expansion) Lieutenant-General Sanchez was in charge of the New York UNIT base by the late 2000s, (TV: The Stolen Earth) and, at one point, he met Sarah Jane Smith. A photograph of this meeting was located in the Black Archive. (TV: The Day of the Doctor)
When the Daleks invaded the Earth in 2009, Martha Jones worked under him at that time as the Medical Director of Project Indigo, an experimental teleportation system which used Sontaran technology. Sanchez reported that Geneva had declared an Ultimate Code Red when the Dalek message of Exterminate! was conveyed to the human race.
When the Daleks invaded UNIT's base in New York City, Sanchez ordered Martha to escape by means of the Project Indigo prototype. He also gave her and authorised her to use the Osterhagen Key. Sanchez and another soldier attempted to fight the Daleks as Martha teleported to safety, but both were exterminated. (TV: The Stolen Earth) .