Defenders of the Earth was an American animated television series produced in 1986, featuring characters from three comic strips distributed by King Features Syndicate—Flash Gordon, The Phantom, Mandrake the Magician, and Mandrake's assistant Lothar—opposing Ming the Merciless in the year 2015. Supporting characters include their children Rick Gordon (son of Flash), Jedda Walker (daughter of the Phantom), Kshin (adopted son of Mandrake), and Lothar's son L.J. The show lasted for 65 episodes; there was also a short-lived comic book series published by Star Comics (an imprint of Marvel Comics). The closing credits credit Rob Walsh and Tony Pastor for the main title music, and Stan Lee for the lyrics. The series was later shown in reruns on the Sci Fi Channel as part of Sci Fi Cartoon Quest.
In 1987, Star Comics (Marvel Comics' children's imprint) published a comic book series which only lasted four issues. It was written by Stan Lee (#1) and Michael Higgins (#2–4) with art by Alex Saviuk. The last issue featured a "next issue" caption but, #5 was never published.