- “They can be feisty little guys. And impossible to house train. Once they start nesting, forget...”
- ―Halfrek[src]
Grimslaw demon was a dangerous demon species that fed on human hearts.[1]
History[]
Anya summoned a Grimslaw demon to grant a wish to Rachel, who had been humiliated by a group of UC Sunnydale frat boys. She wished aloud that they would know what it was like to have their hearts torn out, so Anya made it come true.[1]
The Grimslaw did not leave the frat house, remaining inside while Rachel hid herself inside a closet. It attempted to attack Willow when she went in to investigate, but she protected herself with a force field, and the demon escaped. It then fled to a nearby woods, where it killed another human.[1]
Buffy and Xander went after the demon. Though it pounced on Buffy, she threw it off her, and it retreated back into trees, where Buffy killed it by chucking an axe.[1]
Appearance[]
Grimslaw demons had a long, dark green body that was roughly the same size as an average human. They had spiked carapaces and possessed six legs, four of them elongated for crawling and the other smaller two closer to the abdomen, each possessing small pincers.[1]
Their heads also had several large mandibles and appendages. A long mouth extended from the Grimslaw underside, with teeth for drilling and eating.[1]
Powers and abilities[]

Buffy fights a Grimslaw demon.
Grimslaw demons possessed several common abilities associated with spiders, such as wall climbing and the ability to produce thick black webs. They also could leap great distances, pounce themselves on humans, and overpower them, including Slayers to some extent, though couldn't penetrate a magic force field Willow created.[1]
Their most potent weapon was a secondary mouth located on the bottom of its abdomen, with four large teeth. The demon presumably ate human hearts by pouncing on the victim and biting the heart out.[1]
Grimslaw demons were especially dangerous, as one slaughtered an entire frat house of adult males in one night. Halfrek described Grimslaw demons as not possible to house train due to their nesting habits.[1]
Behind the scenes[]

Artist rendering.
- The Grimslaw demon was both a CGI effect as well as a prop. This could be seen when Willow flung it out a window and after it died.
Appearances[]
- "Selfless"