Gilligan's Planet is an American Saturday morning animated series produced by Filmation and MGM/UA Television which aired during the 1982-1983 season on CBS. It was the second animated spin-off of the sitcom Gilligan's Island (the first being The New Adventures of Gilligan).

Gilligan's Planet was the last cartoon series that Filmation produced for Saturday mornings; afterwards, they transitioned from Saturday Mornings to producing cartoons exclusively for syndication. It was also the first Filmation series to feature the Lou Scheimer "signature" credit (as opposed to the rotating Lou Scheimer/Norm Prescott "wheel" credit which had been used since 1969). In addition, it was one of the last 1980s Saturday morning cartoons to be fitted with an adult laugh track, as the pority of the practice had subsided.

Gilligan's Planet featured all of the original actors but one. Dawn Wells provided the voice of Ginger Grant, as well as her own original character, Mary Ann Summers. The previous animated series The New Adventures of Gilligan did not feature either Wells or Tina Louise voicing their respective characters.

Gilligan's Planet is based on the premise that the Professor had managed to build an operational interplanetary spaceship to get the castaways of the original series off the island. (At least, the series thus disregards two of the three television movies made after the series ended, which had integrated the cast back into society.) True to the castaways' perpetual bad luck, they rocketed off into space and crash-landed on an unknown planet that supported human life. In many ways, the planet was like the island, but with a strangely colored and cratered surface with more land to get around. The rocket was severely damaged in the crash; thus, the castaways were still stranded and the Professor resumed his attempts to repair their only way home.

Overall, Gilligan's Planet represented the source material of the original live-action series with "space" and "alien" themes. Encounters with "headhunters" and other shipwrecked people became encounters with alien creatures. A new character named Bumper was added, who appeared as a reptilian alien pet/sidekick for Gilligan and company.

https://www.imdb.com/title/tt0083422/