Whether a vat-grown clone or a mind-wiped and then cybernetically enhanced man-robot, servitors perform the menial or manual tasks in the 40k universe.

Servitors also are built with combat functions, such as the following minis…

Jovian Pattern Gun Servitor Gun (the robed legs are from a Mutant Chronicles plastic figure)
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Gun Servitor (left) and Technomat Servitor (right), both made by Greenstuff Gav from the conclave
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Battle Servitor with Breacher (left) and Calyx Pattern Task Servitor with Cyro-case (right, a lovely kitbash by Greenstuff Gav)
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Cargo Hauler refitted for combat (i also got this from greenstuff_gav at the conclave forums. Another great conversion)

Combat servitors are nice, but I’m more interested in non-combat servitors. I think these minis are a lovely backdrop, very much like the officially released civilians in the inquisitor range.

Medicae Servitor (the head is from the robocop mini by Andrea, arms are from AT-43)

I’m thinking a Calligraphus servitor next, using the quill bits from the Thorian miniature.