Fan Casting The Upside-Down Man in Justice League Dark

One of the oldest magical beings in the universe, Upside Down Man resides in what is known as the dark multiverse, being made from the darkness within the universe. In the past, Hecate (his counterpart) was horrified by his presence and banished him to the Dark Multiverse, where he remained imprisoned in hopes of not letting him contaminate the world. However, he managed to find a way to escape.