Anne Opotowsky, the creator of The Walled City Trilogy, is a screenwriter and graphic novelist. Her film credits include work for Disney, Fox, and MiraMax among others. She lives and works in California.

Aya Morton grew up in rural Oregon where she wrote and illustrated many stories, mostly about talking animals. She went on to study at Brown University where she majored in Religious Studies, traveling extensively in India and southeast Asia. Aya eventually returned to her first love and received an illustration degree from The Art Center College of Design in 2007. Since then she has lived and worked as a freelance illustrator in London, Hong Kong, and now in Portland, Oregon with her husband and two sons. Aya is a lover of travel and the multiple perspectives gained by different cultures, landscapes, and even historic eras. Her work focuses on the romantic relationship between people and their environments.