Gold Key Comics put out a series that ran 16 issues from 1964 to 1970. Most covers were painted, and most had a photo of either Richard Basehart or David Hedison on them. The first issue of the Gold Key comic was a story called "The Last Survivor". The story bought back Dr. Gamma, the villain from the pilot episode, "Eleven Days to Zero". Gold Key's story was the only sequel to the pilot episode. Hermes Press reprinted the entire run in 2 hardback volumes; the first was released in 2009.