Lesja Liber was a costumer for The Dark Crystal. She helped develop the overall look of the costumes working with Val Jones. Liber was instrumental in the creation of The Dark Crystal Clothing Collection, a couture fashion line inspired the costumes in the film. She went on to work on Ludo for Labyrinth, and helped create effects for several other Jim Henson's Creature Shop projects including The Storyteller, Dreamchild, and Teenage Mutant Ninja Turtles II: The Secret of the Ooze. With her husband, John Stephenson, and several other Creature Shop collaborators, Liber also worked on Return to Oz.