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Star Trek: The Changeling

The Enterprise responds to a distress call from the planet Mulour, only to find the entire civilization has been destroyed. Then a small probe with incredible weaponry and defense capabilities attacks the Enterprise. After Kirk identifies himself, it agrees to be beamed aboard to make contact. The probe, Nomad, was sent out to explore the far ends of the galaxy, but it has altered and is now dedicated to seeking out and sterilizing life forms. Only the fact that it believes Kirk is its creator is keeping it from destroying the Enterprise... and it starts to see through the deception.

Episode Info
Episode number: 2x3
Production Number: 60337
Airdate: Friday September 29th, 1967

Starring Roles
James DoohanJames Doohan
As Lt. Cmdr. Montgomery "Scotty" Scott
Nichelle NicholsNichelle Nichols
As Lt. Nyota Uhura
George TakeiGeorge Takei
As Lt. Hikaru Sulu
Majel BarrettMajel Barrett
As Nurse Christine Chapel

Co-Guest Stars
Makee K. BlaisdellMakee K. Blaisdell
As Lt. Singh
Vic PerrinVic Perrin
voiced Nomad
Barbara GatesBarbara Gates
As Crewwoman
Meade MartinMeade Martin
As Crewman
Arnold LessingArnold Lessing
As Security Guard

Eddie PaskeyEddie Paskey
As Lt. Leslie
Frank Da VinciFrank Da Vinci
As Brent/Vinci
Jay D. JonesJay D. Jones
As Scott's Stunt Double
Roger HollowayRoger Holloway
As Mr. Lemli
William BlackburnWilliam Blackburn
As Lt. Hadley
Marc DanielsMarc Daniels
As Jackson Roykirk
Main Cast
William ShatnerWilliam Shatner
As Captain James Tiberius Kirk
Leonard NimoyLeonard Nimoy
As Commander Spock
DeForest KelleyDeForest Kelley
As Dr. Leonard Horatio "Bones" McCoy


The Enterprise is responding to a distress signal in the Malurian system, where a team of Federation scientists is working, but they can’t get a response. Spock reports the population of four billion is… gone. An unidentified source opens fire on them and they survive the hit, which reduces their shields by 20%. Four more hits will shatter their shields. They finally manage to locate the source of the energy bolts and fire a photon torpedo, but it’s unaffected. The barrage continues and the shields go down, and Kirk sends out a message asking for contact and identifying himself by name. Spock finally identifies the source: a metal cylinder a meter long. The attacker responds with mathematical code, asking for access to their databanks. Kirk agrees and the attacker identifies itself in English as Nomad, saying it’s non-hostile. Kirk agrees to beam it aboard and the small metal cylinder appears in the transporter chamber...

Read the full recap
Episode Notes
The photo of Jackson Roykirk is actually of director Marc Daniels, wearing Scotty's dress uniform.

ArtistSong TitlePlayed When
Wilbur Hatch & Gene L. CoonBeyond AntaresUhura singing on the bridge

Episode Quotes
Nomad: Your facts are uncoordinated.
McCoy: Jim, I don't think anybody's in there.
Nomad: I contain no parasitical beings. I am Nomad.
Scotty: In my opinion, that's a machine.
Spock: It is reacting much like a highly sophisticated computer.
Nomad: I am Nomad. What is opinion?
Spock: Opinion is a belief, a view, a judgment.
Nomad: Insufficient response.

McCoy: Tell me what your function is.
Nomad: This is one of your units, creator?
Kirk: Yes, he is.
Nomad: It functions irrationally.
Kirk: Sometimes. Tell him your function nevertheless.

McCoy: It was supposed to be the first interstellar probe to seek new life-forms.
Spock: Precisely, Doctor. And somehow that programming has been changed. It would seem that Nomad is now seeking out perfect life-forms, perfection being measured by its own relentless logic.

Nomad: That unit is defective. Its thinking is chaotic. Absorbing it unsettled me.
Spock: That "unit" is a woman.
Nomad: A mass of conflicting impulses.

Nomad: Creator, the unit Scott is a primitive structure. Insufficient safe guards built in. Breakdown can occur from many causes. Self-maintenance systems of low reliability.
Kirk: It serves me as it is, Nomad.

Nomad: Mr. Spock is also one of your biological units, creator?
Kirk: Yes.
Nomad: This unit is different. It is well-ordered.

Kirk: I made an error in creating you.
Nomad: The creation of perfection is no error.
Kirk: I did not create perfection. I created ... error.
Nomad: Your data is faulty. I am Nomad. I am perfect.

Spock: Your logic was impeccable, Captain. We are in grave danger.

Spock: My congratulations, Captain. A dazzling display of logic.
Kirk: You didn't think I had it in me?
Spock: No, sir.

Kirk: Besides, what are you feeling so badly about? It's not easy to lose a bright and promising son.
Spock: Sir?
Kirk: Well, it thought I was its mother, didn't it? Do you think I'm completely without feelings? You saw what it did for Scotty. What a doctor it would've made. My son the doctor. Kind of gets you right there, doesn't it?

Episode Goofs
During the opening attack, Leslie grabs the navigational program as he falls back, and it pulls off the floor and almost falls back with him.

When Nomad emerges from Sickbay, they use stock footage from earlier in the episode of it emerging from a turbolift.

What Changed in the Remastered Version
Along with the usual HD improvements, the attack sequence with Nomad is upgraded significantly with a pulsing green energy blast. The Nomad explosion at the end is improved, as is the phaser and disintegration beam effects.

Other Episode Crew

CreatorGene Roddenberry
Executive ProducerGene Roddenberry
ProducerGene L. Coon
CastingJoseph D'Agosta
Costume DesignerWilliam Ware Theiss
Make-upFred B. Phillips
Property MasterIrving A. Feinberg
OtherHerbert F. Solow (Executive in Charge of Production)
Director of PhotographyGerald Perry Finnerman
Art DirectorWalter M. Jefferies
Special EffectsJames Rugg
Main Title ThemeAlexander Courage
Missing Information
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