|Sean K Reynolds Designer, RPG Superstar Judge|
The Twilight Ringwraith is a plastic Lord of the Rings action figure; I don't know what set it's from because my friend Jason gave me a bunch of LOTR action figures in a plastic bag. After a bit of searching, I think it's from Lord of the Rings Armies of Middle-Earth Battle Scale Figures Ringwraith 3-pack.
The big ghoul with his fist raised on the right side is actually a Slayer from the Wizards of the Coast Diablo 2 Monsters set, customized a bit (removed the horns, elbow spurs, and axe).
The human-sized lunging ghouls are from Mantic Games.
The hard-too-see brown things near the "ghoul king" are plastic dinosaur skulls from Safari Limited's Dinosaur Skulls Toob.
The pawns are from the Beginner Box. :)