Lost in Space as a happy crew without internal conflicts. While many storylines in the later series focused primarily on Dr. Zachary Smith, a stowaway and saboteur played by Jonathan Harris, he was absent from the unaired pilot. His character was added after the series was commissioned for production. The pilot episode was first aired on television during a 1997 retrospective. CBS bought the series, turning down "Star Trek" in favor of "Lost in Space". Before the first episode was filmed, the characters Smith and the Robot were added, and the spaceship, originally named "Gemini 12", was renamed the "Jupiter 2" and redesigned.
Lost in Space The foreboding derelict ship from season 1 was redressed to become the "Vera Castle" in season 3. The Fuel Barge from season 2 became a Space Lighthouse in season 3. The derelict ship was used again in season 3, with a simple color change. Likewise the alien pursuer's ship in "The Sky Pirate", was lifted from the 1958 film "War of the Satellites", and was re-used in the episode "Deadliest of the Species". Despite being credited as a "Special Guest Star" in every episode, Smith became the pivotal character of the series. The show's writers expected that Smith would be