Doug was maintained prisoner so his skin secretions would be sold at Naked Grains for its blissful effects. With the help of Helen Jamison-Smythe, he escaped from the exploitation of the demon dealer Sam. Doug then became an ally and friend of Nina and the residents of the Watchers Academy sanctuary.
Doug was identified as a Pylean-human hybrid. He had neon-yellow skin, cracked with black beneath, rounded black horns, and black lips.