* MissingEpisode: A special done for Mexican audiences during the [[TheWorldCup 2002 FIFA World Cup]] where Space Ghost interviewed Mexican goalkeeper Oscar "El Conejo" Perez is apparently lost. The episode was unique because it was recorded in both english (with the original cast) and spanish, yet Oscar Perez' lines remained in spanish in both dubs.
* TheOtherDarrin: A variation: Gary Owens, the voice of WesternAnimation/SpaceGhost in the original 1960s cartoon, is used by the current Space Ghost's former mentor, Warren, as a replicant so he could have Space Ghost on his own show. Gary is rendered as an image of Space Ghost over a boiling cauldron that occasionally blinks into his real face. The real Space Ghost, feeling that Warren violated their trust as mentor and student, confronts him and Gary to reclaim his identity.
** In "Spanish Translation", Brak was voiced by C. Martin Croker. In all other appearances, he was voiced by Andy Merrill.
** In "Woody Allen's Fall Project", Space Ghost was played by Andy Merrill, Zorak was played by Dave Willis, and Moltar was played by Gus Jordan.
* TalkingToHimself: C. Martin Croker voices Zorak and Moltar (though his voice was pitched down electronically for Moltar's lines).
* TrollingCreator: There's no way the uncut version of "Fire Ant" (that is, Space Ghost crawling after an ant for 10 minutes) could be seen as anything but this.
* WhatCouldHaveBeen: As it was created as a BackdoorPilot (but broadcast after the series' launch), the episode "Baffler Meal" features outdated, preliminary versions of the WesternAnimation/AquaTeenHungerForce just 'cause.
** It also shows us a new future of rock 'n' roll dominated by Colonial-era musicians, who perform a bizarre cover of "[[Music/LedZeppelin Black Dog]]" with fast-food-related lyrics.
** While it was in pre-production, [[Series/FantasyIsland Hervé]] [[Film/TheManWithTheGoldenGun Villechaize]] was in negotiations to co-star as a sidekick of Space Ghost. Sadly, he killed himself before anything happened.
** Certain bits of dialog in the initial draft of "Fire Ant" (as shown in "Table Read") were excised from the completed version, such as the flashback with Dr. Fishopolis; a different flashback to the old Space Ghost show; and a different opening line by Space Ghost: "Sorry I'm late. I was out saving your life... in the future!"