Star Trek (1966–1969)
23 user 7 critic

What Are Little Girls Made Of? 

Nurse Chapel is reunited with her fiancé; but his new obsession leads him to make an android duplicate of Captain Kirk.


James Goldstone


Robert Bloch, Gene Roddenberry (created by)

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Episode complete credited cast:
William Shatner ... Capt. Kirk
Leonard Nimoy ... Mr. Spock
Michael Strong ... Dr. Roger Korby
Sherry Jackson ... Andrea
Ted Cassidy ... Ruk
Majel Barrett ... Christine Chapel
Nichelle Nichols ... Uhura
Harry Basch ... Brown
Vince Deadrick Sr. Vince Deadrick Sr. ... Mathews (as Vince Deadrick)
Budd Albright Budd Albright ... Rayburn


The crew of the Enterprise arrive at the planet EXO-III with some trepidation and great anticipation. They are there to see if hey can locate the renowned scientist Dr. Roger Korby. The man hasn't been heard of for 5 years and the general belief is that he is dead. For Nurse Christine Chapel however, a reunion with Corby will be a reunion with her fiancé. They find Korby alive but when Kirk and Chapel beam down to the planet, they find a man obsessed who is using alien technology to reproduce the humans around him in the form of androids. Written by garykmcd

Plot Summary | Plot Synopsis


TV-PG | See all certifications »






Release Date:

20 October 1966 (USA) See more »

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

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Did You Know?


According to Sherry Jackson, William Shatner's chest had to be shaved for his nude scenes in the android machine. See more »


One close-up of Kirk during his last conversation with Ruk is flipped. Notice that his hair is parted the opposite way and the colors of the costume are reversed. See more »


Ruk: You brought him among us! You brought the inferior ones! We had cleansed ourselves of them. Now you bring the evil back.
See more »

Crazy Credits

On the closing credits plate which lists 'co-starring' roles, two names are listed... Sherry Jackson and Ted Cassidy. But the names are printed in such a way that it appears three actors are credited: Sherry, Jackson, and Ted Cassidy. See more »

Alternate Versions

Special Enhanced version Digitally Remastered with new exterior shots and remade opening theme song See more »


Featured in For the Love of Spock (2016) See more »


Theme From Star Trek
Written by Alexander Courage
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User Reviews

"I'm Roger Corby"
1 November 2014 | by bkoganbingSee all my reviews

Michael Strong plays the famous scientist Roger Corby in this episode of Star Trek where he is the head of an expedition that has gone to a planet with a dead sun. The people who lived on the surface went below to live and created artificial heating and light, but that only lasts so long as sunlight is vital to the maintenance of life.

William Shatner comes down with Majel Barrett and two security guards and finds Strong with colleague Harry Basch on the planet with one beautiful sexy android played by Sherry Jackson. Also down there is an almost seven foot android played by the Addams Family former butler Ted Cassidy. He's a survivor still running the machinery of the old civilization that died out long ago. He's also quite protective of that and those that are on the planet.

Strong and Barrett are an item, but it becomes clear that Strong has developed some sinister technology and with it sinister ideas from the civilization from long ago which we never learn the name of.

The driven Strong and Cassidy star in this Star Trek story. It was nice to see Cassidy in a role where he didn't just grunt and say 'you rang'.

Strong has plans for humankind that Captain Kirk and Nurse Chappell play some role in foiling. What they are you have to watch the episode.

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