The Cage (Star Trek: The Original Series) - Production

Production

"The Cage" was filmed at Desilu Productions' studio in Culver City, California, from November 27 to mid-December 1964. Post-production work (pick-up shots, editing, scoring, special photographic and sound effects) continued to January 18, 1965.

Gene Roddenberry paid a lot of attention to what The Outer Limits team was doing at the time, and he was often present in their studios. He hired several Outer Limits alumni, among them Robert Justman and Wah Chang for the production of Star Trek. One of the creatures in the cages was reused from the episode "The Duplicate Man" of the TV series The Outer Limits, where it was called a megasoid. The prop head from The Outer Limits episode "Fun and Games" was used to make a Talosian appear as a vicious creature. The process used to make pointed ears for David McCallum in "The Sixth Finger" was reused in Star Trek as well. The "ion storm" seen in "The Mutant" (a projector beam shining through a container containing glitter in liquid suspension) became the transporter effect.

All of the Talosians were portrayed by women, with their telepathic voices recorded by male actors. This was done to give the impression that the Talosians had focused their efforts on mental development to the detriment of their physical strength and size, and also to give that much more of an alien feel to the Talosians. However, the deep voice of Malachi Throne as the Keeper in "The Cage" was electronically processed to sound higher-pitched for "The Menagerie," as Throne also portrayed Commodore Mendez in the latter. The Keeper's voice from "The Menagerie" was kept for both the remastered and new "original" versions of "The Cage" which would be released later. Throne's unaltered voice work as The Keeper only survives as a brief sample that can be found in the preview trailer for "The Menagerie" (Part II).

The laser cannon prop appears only in this episode.