The creature featured is called a "Shunka", and feeds on werewolves and is based on the Sabre-toothed cat Smilodon. In Native American folklore, there was a creature known as "Shunka Warakin", which carried off dogs (in fact that's what its name means). However, the legendary creature resembles a wolf with ruffled black fur. A specimen was reportedly shot in Montana in 1896, and named "Ringdocus".
First appearance of Elijah B. Moore as Wade.