Christy Marx is an American scriptwriter, author, and game designer, especially narrative designer. She is best known for her work on various television series including Jem, Teenage Mutant Ninja Turtles, Conan the Adventurer, G.I. Joe, Hypernauts, and Captain Power. She is also known for her comic book work, including her original comic book series Sisterhood of Steel as well as work on Conan, Red Sonja, and Elfquest. Marx has also authored several biographies and history books.

Jem, also known as Jem and the Holograms, is an American animated musical television series that ran from 1985 to 1988. The series is about record company owner Jerrica Benton, her singer alter-ego Jem, and the adventures of Jem and her band the Holograms.