Hello! :)

I have a question about Warhammer 40k lore thing. What is the name of those winged, flying dead babies? I used to know it, but can't remember it now and it's making me so mad.

Cyber Cherubim? Or maybe just Cherubim, since that's the name of the typical baby-looking angels.

They aren't actually "dead". They're vat-grown and were never really alive. Just like most servitors.

Cherub OR Cherubim

http://warhammer40k.wikia.com/wiki/Cherub

That depends on what fluff you base that one. In some fluff it is said that most servitors are convicts and/or other "undesirable" elements of society.

Yes, i think that was the gist in the original Rogue Trader game that W40K sprng from / expanded from - though with the exception of the first few DoW games I havent bothered with GW stuff much since the 90s!

Thank you! Thats what I am looking for :D

The Cherubim are pretty much custom-made.

Other Servitors come from three main classes. The first being vat-grown. The second is the convicts or others that were punished. The third being failed Space Marine initiates, though those tend to only be used within the Chapter that they were trying to get into.

It is, of course, based upon the world that the servitor comes from. Lotsa different worlds with lotsa different methods for creating them. Convicts are a good source since they'd otherwise be wasted.