Elf of the pisky race
Pock is an elf of Skellig island and an inhabitant of the Elfin Forest.
Pock, having so far been seen only in comical "chestnut" form, is virtually indistinguishable from Puck and his cohorts. He can be distinguished from the other four by the five hair thorns atop his head.
Pock, judging by his comically delirious appearance, seems to be a bit of a ditz. He did not remember that Puck was gone until he arrived in person.