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 character. "Lost in Space" is remembered for the Robot's oft-repeated lines such as "Warning! Warning!" and "It does not compute". Smith's frequent put-downs of the Robot were also popular, and Jonathan Harris was proud to talk about how he used to lie in bed at night dreaming them up for use on the show. "You Bubble-headed Booby!", "Cackling Cacophony", "Tin Plated Traitor", "Blithering Blatherskyte", and "Traitorous Transistorized Toad" are but a few alongside his trademark lines: "Oh, the pain ... the pain!" and "Never fear, Smith is here!" One of Jonathan Harris's last roles was providing the voice of the