Captain Ultra is the titular intergalactic hero of a pulp-style tokusatsu science fiction space adventure television series. Produced by Toei Company Ltd., the series aired on Tokyo Broadcasting System from April 16 to September 24, 1967, with a total of 24 episodes. The show is titled Space Special Effects Series: Captain Ultra. This series is based very loosely on Captain Future, the pulp science fiction saga created by the influential Edmond Hamilton. This was not the only time his work was adapted in Japan: Captain Future was officially adapted into an anime series by Toei Doga in 1978, and that same year, Tsuburaya Productions adapted his Starwolf novels into a tokusatsu sci-fi action series of the same title. Originally, this series was aired by Tokyo Broadcasting System right after the end of the original Ultraman show to serve as a filler series to while Tsuburaya Productions geared up for the production of Ultra Seven. So only 24 episodes of Captain Ultra were ordered by the network. So, the week following the conclusion of Captain Ultra, Ultra Seven premiered on TBS. Still, while short-lived, the series has been released in Japan on all of the major home video formats since the 1980s: VHS, Lasterdisc, and DVD, and in 2005, a tankōbon of the original serialized manga、illustrated by Shunji Obata, was published by Manga Shop.