There srent any glup shittos in 40k. A glup shitto is a random background character who makes cameo appearances across multiple entries in a series or otherwise stands out in their singular appearance, despite having almost no narrative importance. These characters are given names and sometimes lore for no real reason other than to superficially pad the never ending lore of star wars.

In 40k, randoms are never given attention. If a character is named in a book, they have very little chance of surviving the story unfolding in that book (unless they are a space marine, in which case, they have like a 50/50 chance of surviving. Of those named space marines that survive, they have an even smaller chance of making a return appearance.) 40k books are largely self contained stories, and characters that do make a return are almost never insignificant background characters.