★★★★★ March 9, 1967 Season 1 Episode 25
If you want to see where we are…and you missed a few…HERE is a list of the episodes in my index located at the top of my blog.
This show was written by Gene L. Coon and Gene Roddenberry
William Shatner’s father died during the making of this episode. Please check the IMDB notes below about that.
This is the fourth excellent episode in a row. I’ve seen a video of a 1990s Star Trek convention of Leonard Nimoy saying this episode’s closing banter between Spock and Kirk was one of his favorite scenes to perform. He noted, “It was a wonderful moment which defined the relationship and defined the whole Spock character’s existence and his attitude about himself.”
I like the fact that the episode is not about one specific character but evolves around the trio handling an alien problem. Also, it’s nice to see an episode that doesn’t only happen on the Enterprise.
The Enterprise arrives at a mining colony on Janus VI in order to kill a beast called the Horta, which has been killing miners, jeopardizing the exportation of the ever-important pergium (an element for energy). As the miners continue drilling deeper, it seems to be upsetting the monster more and more. Spock soon discerns that the monster is silicon-based, not the type of life form that the crew is familiar with.

In the beginning, everyone hates the Horta… they fear it and loathe it. But Spock’s mind meld and Kirk’s understanding soon changes this tune for everyone. People are often afraid of what they don’t understand. This episode reveals to us that, if we hope to find peace with what we don’t understand or take issue with, the first step is communication.
There is not much action in this one but a compelling episode and is a very good first-season episode. During the episode, Kirk wanted the creature killed but Spock wanted it alive. Spock augured to no avail but things started to change once he met the Horta.
Just a quick note on a director. Ralph Senensky was told he was going to direct this episode and was sent the script but then told it would be another episode…yesterday’s This Side of Paradise.
The reason I mention this is that Ralph has a great site where he talks about all of the different Star Trek and other TV shows (including the Twilight Zone and Waltons) he directed. If you have time check it out…he is 99 years old but still posts on his site.
From IMDB:
In his book “Star Trek Memories”, William Shatner identified this as his favourite episode, because his father died during filming and Leonard Nimoy’s delivery of the mind meld lines made him laugh. He thought it was “exciting, thought-provoking and intelligent, it contained all of the ingredients that made up our very best Star Treks.”
Janos Prohaska, the creator of the Horta costume, actually wore it into Gene L. Coon’s office, as if to say “Look what I designed”. Coon said “That’s great! What is it?”, and Prohaska said “I don’t know. It can be whatever you want.” Coon replied “I’ll write a script around it”, and he wrote this episode in four days so the costume could be used.
Arthur C. Clarke once remarked, in 1995, that of the Original Series, the only episode he could recall was this one, stating that “It impressed me because it presented the idea, unusual in science fiction then and now, that something weird, and even dangerous, need not be malevolent. That is a lesson that many of today’s politicians have yet to learn.”
When William Shatner, on the set, got the call from his mother informing him about his father’s death, the crew was ready to shut down production, but he insisted on continuing. During the rest of the day, Shatner took comfort in Leonard Nimoy, and cinematographer Gerald Perry Finnerman, whose father had died on a movie set less than seven years before.
William Shatner was in Florida for his father’s funeral while nearly all of Spock’s “mind meld” scene with the Horta was shot. His screen double is shown from behind in several of the shots and all of Kirk’s “reaction” shots were made after he returned.
This episode was the first time McCoy used the phrase, “I’m a doctor, not a (blank)” when Kirk asks him to help the Horta, finishing the line as, “I’m a doctor, not a brick layer!” An earlier version of this phrase is used in “The Corbomite Maneuver,” when McCoy says, “What am I, a doctor or a moon-shuttle conductor?”
Gene Roddenberry was impressed with the way this episode explains the behaviour of a Star Trek “monster,” citing the instalment as “a classic example of doing this right” as well as “one of our most popular episodes.” He went on to say, “The Horta suddenly became understandable [….] It wasn’t just a monster-it was someone. And the audience could put themselves in the place of the Horta… identify… feel! That’s what drama is all about. And that’s it’s importance, too… if you can learn to feel for a Horta, you may also be learning to understand and feel for other Humans of different colours, ways, and beliefs.”
In a book about Star Trek, it was reported that after William Shatner returned from the funeral, to put everyone at ease, as he was trying to do his lines following Mr. Spock’s mind meld with the Horta and his cry of “AHH! PAIN! PAIN! PAIN!”, Leonard Nimoy just spoke the words, so Shatner told him to do it again with feeling. When “Spock” again said “AHH! PAIN! PAIN! PAIN! ” Shatner yelled out, “WILL SOMEBODY PLEASE GET THIS VULCAN AN ASPIRIN!”
“No Kill I” was the name of a Star Trek-themed punk rock band.
This episode includes only one actress, who appears for a few seconds and has no lines. This is the only episode with no female speaking parts.
The unbroken Horta eggs were toy bouncing balls painted gold.
NBC announced that Star Trek would be renewed for a second season next fall, during the closing credits of this episode on 9 March 1967.
This is the only episode in the original series in which the distinction is drawn between “phaser one” and “phaser two.”
This episode marks the first and only time an episode begins without the Enterprise or its crew being involved in the teaser scenes before the main credits.
Gene L. Coon’s original script featured a different material as the base of the Horta, but researcher Kellam de Forest changed it to silicon, as the original choice seemed to be even theoretically impossible.
Actor Barry Russo, appearing as Lt. Commander Giotto, also appears in Star Trek: The Ultimate Computer (1968) as the character Commodore Robert Wesley.
The Star Trek: Deep Space Nine (1993) novel “Devil in the Sky” is a sequel of sorts to this episode.
This episode was originally scheduled to be filmed before Star Trek: This Side of Paradise (1967), with Ralph Senensky assigned to direct it, but during pre-production the two episodes and the directors were switched because Gene L. Coon thought “Devil” would be a tough assignment to first-time Trek director Senensky.
The clubs used by some of the Janus VI colonists during their hunt for the Horta appear to be of the same design used by Kirk during his fight with Spock in the transporter room in Star Trek: This Side of Paradise (1967).
Summary
The Enterprise travels to the planet Janus 6 to assist the mining colony there. Kirk, Spock and McCoy beam down to the planet where Chief Engineer Vanderberg tells of a creature loose in the mine tunnels killing some of his men. The monster seems to appear out nowhere then disappears just as quickly. Finding that the creature, known as a Horta, lives in a newly opened part of the underground mining complex, Spock uses the Vulcan mind meld to determine why it is killing the miners.
Here are some CGI effects they have made into this episode
CAST
William Shatner … Captain James Tiberius ‘Jim’ Kirk
Leonard Nimoy … Mister Spock
DeForest Kelley … Doctor Leonard ‘Bones’ McCoy
Ken Lynch … Vanderberg
James Doohan … Lieutenant Commander Montgomery ‘Scotty’ Scott
Brad Weston … Appel
Biff Elliot … Schmitter
George Allen … Engineer #1 (as George E. Allen)
Jon Cavett … Guard
Barry Russo … Giotto
Lee Allen … Janus IV Miner (uncredited)
Tom Anfinsen … Civilian Engineer (uncredited)
Bill Blackburn … Lieutenant Hadley (uncredited)
Frank da Vinci … Lt. Osborne (uncredited)
Dick Dial … Sam (uncredited)
Robert Hitchcock … Miner (uncredited)
Bob Hoy … Horta (uncredited)
Monty O’Grady … Miner (uncredited)
Eddie Paskey … Lieutenant Leslie (uncredited)
Janos Prohaska … Horta (uncredited)
Al Roberts … Roberts (uncredited)
Ron Veto … Security Guard (uncredited)
