How did Star Trek make one William Shatner share a table with another—and turn a frozen planet into a working android factory? This behind-the-scenes look at “What Are Little Girls Made Of?” follows the episode from changing drafts and Roddenberry’s revisions to James Goldstone’s shooting schedule and surviving production paperwork.
See how Ted Cassidy’s Ruck, Michael Strong’s Korby, and Sherry Jackson’s Andrea were shaped by performance, makeup, and costume design; how blue-and-green jumpsuits became futuristic uniforms; and how locked-camera photography and optical effects created Kirk’s duplicate. Archival scripts also reveal changes to the dining scene and the ending, where a fatal phaser shot shifts the emphasis toward Korby’s choice.
From a cavern concept attributed to Matt Jefferies to the practical problems of a stretch-fabric costume, this is the craft, improvisation, and production pressure behind a memorable early Star Trek episode.
How did the Star Trek production team turn one William Shatner into two Kirks for the episode What Are Little Girls Made Of?
This behind-the-scenes look examines the craft behind the android double and the practical challenges of filming on a frozen planet. We track the evolution of the script from early drafts to Roddenberry’s final revisions, showing how the crew handled the pressure of a tight shooting schedule.
Explore the costume and makeup choices that brought characters like Ruck and Andrea to life, alongside the locked-camera photography used to create the captain's duplicate. This retrospective provides a clear view of how production paperwork and improvisation shaped a memorable early story.
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0:00 The Duplicate Dilemma
1:04 The Influence of Robert Bloch
2:49 Christine Chapel's Emotional Stakes
4:40 The Stillness of Ted Cassidy
8:24 Engineering the Impossible Shot
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