Trivia Facts | Top Quotes | Goofs/Mistakes
  • The props used in this show, (such as the computers and guns) also were used in Lost in Space, The Time Tunnel, Voyage to the Bottom of the Sea, and "Batman" (1966).
  • Often dismissed by science fiction "purists" such as Harlan Ellison, because of the sheer physical impossibility of such "giants" possibly existing, as their mass (which would increase geometrically while their strength only increased proportionately) would crush them. The novelization of the series (by Murray Leinster) attempted to account for this. No such explanation is ever given in the series.
  • At the time of its debut, this was the most expensive show produced on television.
  • Even though certain cities are named, the name of the giants' planet is never mentioned.
  • Actress Heather Young, who played stewardess Betty Hamilton, was pregnant for much of the show's second season resulting in her either being filmed mostly from the waist up, wearing baggy outfits or being written out of several episodes altogether.
  • In one of the last episodes of the series ("Wild Journey"), Steve and Dan travel back through space and time to before they left Earth, and they attempt to change history by persuading any one of their passengers not to take the fateful flight. Actor Stefan Arngrim, who played Barry Lockridge, had entered puberty and could not reprise his younger self, so a body double (with face obscured) was used.
  • Although it is supposed to be another planet, nameplates visible on cars and trucks on the show clearly indicate they were manufactured by Chrysler Corporation (the automaker contracted with the series' studio at that time).
  • In the second season, devices such as a laser torch and a periscope were used by the castaways.
  • The flight number for the Spindrift was 612.
  • The Spindrift, on London-bound suborbital flight 612, crashed on June 12 1983. This date was creator Irwin Allen's birthday.
  • Throughout the run of the show, the actors performed their own stunts and stunt doubles were rarely used unless it was absolutely necessary.
  • Although the series ran for two years (1968 thru 1970), the first 12 episodes were filmed in the summer and fall of 1967 to meet the original planned start of the series which would have been January, 1968. The network was originally planning to use "Giants" as a mid-season replacement show. Since nothing needed replacing on their schedule, the series's premiere date was pushed back to Fall 1968 where it inevitably replaced Irwin Allen's "Voyage" series on the schedule. The 1967 start of the series' filming helps explain the difference in appearance of actor Stephen Arngrim from year one to year two, because in actuality THREE years have transpired over the course of the series 51 episodes!
  • The cabin chairs used in the Spindrift are the same design as those used in the cabin of the spaceship seen in the original "Planet of the Apes" (1968), also in production at 20th Century-Fox in the summer of 1967.
  • Deanna Lund stated in an interview that if the show had returned for a third season that the producers were going to explore the possibility of a romance between her character Valerie Scott and Mark Wilson, who was played by Don Matheson. This would have reflected the real life romance between the two actors who married after the show's cancellation.
  • At the time, it was the most expensive pilot ever filmed.
  • This is the only time where one of the cast members has a romantic scene. It is when Mark kisses the Marna.
  • Per the title, the original Broadway production of "On A Clear Day You Can See Forever" opened at the Mark Hellinger Theater on October 17, 1965, ran for 280 performances and received Tony Award nominations for Best Score, Best Actor (John Cullum) and Best Actress (Barbara Harris).
  • This is the first time that Dan's being a former Olympian is mentioned.
  • Per the title, a lodestone is a naturally occurring magnet that is usually a magnetized piece of the mineral magnetite. They can attract iron and have been cherished since ancient times for their magnetic or seemingly magical properties.
  • Fitzhugh uses his fists to tear a hole in the paper bag he's being held prisoner in - a visual play on the expression, "He couldn't punch his way out of a paper bag."
  • The title comes form the mystery novel And Then There Were None by Agatha Christie which was also published under the title 'The Ten Little Indians' in 1939.
  • Ron Howard plays a boy genius who invents a super growth formula. He played the same kind of role in the film Village of the Giants.
  • This is the only occasion where Gary Conway appears wearing clothing other than his usual costume. Also, this is only one of two occasions where Kurt Kasznar wears a clothing other than his usual costume. The other time was in the episode _"Land of the Giants (1968) {The Marionettes (2.23)}"_.
  • Lee Meriwether, plays the Mother of Buddy Foster, who was one of the children trapped down the well. They also played Mother and Son the same year (1969) of this episode's airing, in the film Angel in My Pocket (1969).
  • The giants are usually given alien-sounding names in the series. This week, they were creative about it. The giant Talf Ekorb's name is "Flat Broke" spelled backward, and his wife's name is "Also Broke" in reverse (both referring to their financial situation.) Their son's name "Dal" is simply "lad" spelled backward.
  • The title refers to gambling game involving three shells or cup and a pea or small ball and is used by con man who can manipulate the game so that the house always wins.
  • This is the first episode of the second season. It features a new opening theme song as well as a new opening sequence.
  • Mark, Valerie and Betty all have new wardrobes beginning with this episode.
  • This episode features the debut of two new devices that will be used by the castaways for the remainder of the series; a periscope as well as a laser torch.
  • This is the only time that Deanna Lund wears an outfit other than her usual costume.