World of Giants full-sized partner, Agent Bill Winters. Thompson set up the premise in the show's opening voiceover: "World of Giants" was produced by Ziv Television Programs, the company responsible for such hit TV series as "Highway Patrol", "Sea Hunt", and "Bat Masterson". Not a success, this series only lasted through its initial production order of 13 episodes. Thompson later went on to star in the (much more) successful CBS TV series "Daktari" (1966-1969). Nearly a decade later, in 1968, a similarly-themed Irwin Allen TV series, entitled "Land of the Giants", starring Gary Conway and Don Marshall, ran on ABC. Two years prior
Lost in Space job for its "Lost in Space" appearance, while space monster costumes would be reused on "Voyage" as sea monsters. The clear round plastic pen holder used as a control surface in the episode "The Derelict" turned up regularly throughout the show's entire run both as primary controls to activate alien machinery (or open doors or cages), and as background set dressing; some primary controls were seen used in episodes such as Season 1's "The Keeper (Parts 1 and 2)", "His Majesty Smith", and Season 3's "A Day At The Zoo", and "The Promised Planet". Spacecraft models, were also routinely re-used.