Graven are available as a playable race in Blood Moon and for the most part resemble the race they were prior to their crossing into the world of undeath. Those that cross over but do not remember their past or long to continue it often roam out into the wilderness where they gather in enormous hordes for protection. These grey walkers are often harmless, but in a panic they can stampede and crush things underfoot. Some become undead wailers and summon other undead in their wake. Thankfully grey walkers do not often roam into towns.
Blood Moon Ghouls or Red Runners are voracious versions of graven that devour any of thing alive. They posses amazing speed and strength and can empty out an entire town in a matter of minutes. They are able to infect others with their disease. Any of the living that die from this disease return to life as a Blood Moon Ghoul.