Grimlock

Grimlocks are one of the lesser races that live down in the depths of the Underdark in Dungeons & Dragons. Born in 1981, they are amongst the sizable number of fan-submitted monsters that originally appeared in White Dwarf back when that magazine covered D&D 1e as well as other RPGs instead of just Games Workshop creations.

Grimlocks are a shameless rip-off of the Morlocks, from H.G. Wells' novel "The Time Machine", which makes them savage, blind, pale-hued cannibalistic cavemen that dwell deep in the darkness below the earth. Totally blind, to the point that their eyes were removed from them entirely in 3rd edition onwards, grimlocks depend on their super-keen senses of touch, scent and hearing to get around, and they're pretty damn good at it. They're even protected against gaze attacks and most illusions, depending on edition.

Grimlocks are often associated with illithids; voluntary workers for them in AD&D, they became one of their slave races in 3e, having been mutated and engineered by the illithids from a particularly barbarous tribe of primitive humans that were driven underground by their neighbors, who were sick of their constant raiding.

Despite being blind cannibal savages, Grimlocks have actually been playable in both AD&D (the "Primitive PCs" article in Dragon Magazine #265) and in the Forgotten Realms: Underdark sourcebook for 3.5.

They have nothing to do with the dinosaur Transformer, and in fact existed before he did. They also have nothing to do with Kroq-Gar's Carnosaur, Grymloq.