Described in the Lovecraft novella At the Mountains of Madness as typically protoplasmic, multi-eyed creatures, Lovecraft Country introduces a more “vampiric” interpretation, depicting them as amorphous, nocturnal, and able to pass their physiology onto a human through its bite.
The monster earns a reprise in the following episode, “Whitey’s on the Moon,” when Christina Braithwhite (Abbey Lee) appears to birth an infant Shoggoth from a pregnant cow.
The first real sighting of an H.P. Lovecraft creation on the series occurs later in the first episode, when a group of racist cops’ apprehension of Tic, Leti (Jurnee Smollet), and Uncle George (Courtney B. Vance) is interrupted when they become dinner to what we presume are Shoggoths.