Mandroid

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Ronald explains his mandroid theory.

Mandroid A robot that looks and acts as human. – Pad of Definitions (2.12 Nightshifter), Official Website

In 2.12 Night Shifter, Ronald Resnick postulates that the crimes are being committed by Mandroids.

Ronald: Chinese been working on 'em for years, and the Russians before that. Part man, part machine, like the Terminator, but the kind that can change itself, make itself look like other people.

Dean: Like the one from T2?

Ronald: Exactly! See, so not just a robot, more of a... a... a Mandroid.

Sam: A Mandroid?!

Ronald explains the retinal flare obvious when shapeshifters are photographed as "laser eyes".

The "Mandroid" on the cover of Fortean Times (May 2006 edition) is a Cyberman from Doctor Who.