Vishklar

Vishklars were a Humanoid species from the Seretti dimension.

Biology
Vishklars were not initially physical beings, though they could feed on Human nightmares and come through to become a physical part of the universe. (SJA: The Nightmare Man)

History
In September 2010, a Vishklar used Luke Smith's dreams to come through into the universe. He began to give others nightmares and grow more powerful, but was ultimately defeated by Luke, Clyde and Rani. (SJA: The Nightmare Man)