Star Trek: Season 1 (1966 - 1967)


Season 1
Star Trek

Critics Consensus

An optimistic ode to humanity, Star Trek may look dated, but its gadgetry and solid storytelling solidify its place as one of pop culture's most enduring franchises.



Critic Ratings: 24


Audience Score

User Ratings: 242

Rate And Review

User image


  • User image

    Super Reviewer

    Rate this season

    Oof, that was Rotten.

    Meh, it passed the time.

    It’s good – I’d recommend it.


    So Fresh: Absolute Must See!

    What did you think of this tv season? (optional)

  • User image

    Super Reviewer

    Step 2 of 2

    How did you buy your ticket?

    Let's get your review verified.

    You're almost there! Just confirm how you got your ticket.

  • User image

    Super Reviewer

    Rate this season

    Oof, that was Rotten.

    Meh, it passed the time.

    It’s good – I’d recommend it.


    So Fresh: Absolute Must See!

    What did you think of this tv season? (optional)

  • How did you buy your ticket?


Air date: Sep 8, 1966

The Starship Enterprise makes a routine call at the arid, uninhabited planet M-113 in order for Dr. McCoy (DeForest Kelley) to give a required annual medical check-up of the husband-and-wife team of archeologists working there. One seemingly minor complication is that Nancy Crater (Jeanne Bal), the wife, was once involved romantically with McCoy. Captain Kirk and Dr. McCoy meet with an irrationally hostile reception from Robert Crater (Alfred Ryder), however, and then members of the crew start turning up dead from unknown causes. Ultimately, it's determined that they were killed by a sudden and medically inexplicable loss of all the salt from their bodies. The mystery deepens as some crew members find themselves approached by mysteriously compelling strangers, and the planet below is short one of its two inhabitants. Eventually, Kirk and Spock determine that their adversary is the last native inhabitant of the planet, a kind of salt "vampire" that has the ability to alter its appearance to the shape of whoever its victim most wants to see. Needless to say, finding the vampire aboard the ship is easier said than done. Its shape-shifting ability has also allowed it to temporarily incapacitate McCoy, whose ignorance of events nearly costs Kirk his life.

View Details
Air date: Sep 15, 1966

While on a routine journey to a local Starbase, the starship Enterprise receives orders to transport a special passenger, a young boy known only as Charlie X, in this episode from the first season of the landmark science fiction series. An orphan with an abnormally high intelligence, Charlie claims to have been raised entirely by computers in an isolated, automated outpost. Yeoman Janice Rand takes a particular interest in befriending the strange boy, and he responds, developing a romantic attachment to the woman. When Rand gently dismisses his affections as puppy love, however, Charlie's love quickly turns to rage. The boy begins to unleash highly destructive mental powers, which he had previously hidden, against all who he feels have slighted him, and Captain Kirk must find a way to stop the child before he and the Enterprise are destroyed.

View Details
Air date: Sep 22, 1966

The series' second pilot episode (following the then-unaired "The Cage") is an extraordinary science fiction-adventure for its time. The starship Enterprise, commanded by Capt. James Kirk (William Shatner), is about to probe outside of the galaxy when they encounter an old-style disaster buoy from a spaceship listed as missing for two centuries. Examining its memory banks, they find that the ship encountered an unknown form of energy at the galaxy's edge, which precipitated a frantic search for information in their computer about paranormal mental powers and the captain's ordering of the destruction of his own vessel. The Enterprise proceeds on course and hits the same energy barrier, escaping with its main drive disabled, nine crewmen dead, and First Officer Gary Mitchell (Gary Lockwood) mutating as a result of contact with the barrier. With the ship now years from any Federation base as a result of its disabled drive, the crew finds itself with a monster aboard. Mitchell quickly manifests extraordinary mental powers and an increasing contempt for the crew around him. Science Officer Spock (Leonard Nimoy) warns that Mitchell will soon be a threat to all of them, while psychiatrist Elizabeth Dehner (Sally Kellerman), who is in love with him (and, as later revealed, is also mutating from the energy blast), defends Mitchell as a potentially improved, evolved version of humanity. Kirk at first cannot face the choice that he knows he must make, of leaving his oldest friend marooned on an uninhabited planet that may also have the facilities to repair the main engines. Finally, Mitchell forces his decision when he turns on Kirk and the crew with mental powers they can't combat.

View Details
Air date: Sep 29, 1966

The starship Enterprise arrives in orbit around a planet on the verge of collapse and finds the survey team working there dead, all seemingly having gone mad. Unbeknownst to anyone at the time, one member of the crew brings the cause of the insanity back aboard the starship with him. It spreads gradually, bringing hidden personality traits of its victims to the surface -- one man literally dies of a suicidal depression, while Sulu (George Takei) assumes the role of an 18th century swashbuckler, and Lt. Riley (Bruce Hyde) thinks himself the captain, locking himself in engineering and shutting down the Enterprise's engines, just as the planet begins its final destruction and starts pulling the ship out of orbit. Kirk and Spock both contract the disease and must wrestle with their personal demons, as they face the seemingly impossible task of restarting the ship's matter/anti-matter drive with only minutes before the Enterprise burns up in the atmosphere.

View Details
Air date: Oct 6, 1966

Thanks to a freak accident involving the Enterprise's transporter device, Captain Kirk is split into two separate bodies, each with its own personality, in this installment of the popular television series. The two Kirks represent opposite aspects of the Captain's personality: one who is aggressive, forceful, and callous, the other caring, sympathetic, but also indecisive and weak. The two men vie for control of the ship, leaving the Enterprise without a definite commander. Meanwhile, the rest of the landing party, led by Sulu, remains stranded on the planet's surface until the transporter can be repaired. Spock, Scotty, and the others must find a way to reunite the halves of Kirk's personality and rescue the others before nightfall arrives, bringing with it extreme cold that could mean the landing party's death.

View Details
Air date: Oct 13, 1966

The crew of the Enterprise encounter unexpected trouble when they help retrieve a stolen Federation ship in this early episode of the landmark science fiction series. The theft turns out to have perpetrated by notorious con man Harry Mudd, who is traveling with a new set of accomplices: three astonishingly gorgeous women. These sirens entrance the male members of the Enterprise crew, allowing them to successfully steal several dilithium crystals, crucial elements of the ship's power supply. Mudd plans to use the crystals as leverage to bargain with the Enterprise, but Captain Kirk has his own plans -- as do, it turns out, Mudd's women.

View Details
Air date: Oct 20, 1966

The Enterprise must thwart a mad scientist who plans to exterminate the human race and replace them with androids in this episode from the first season of the landmark science fiction series. Captain Kirk discovers the plans of the brilliant Dr. Korby while accompanying the Enterprise's Nurse Chapel, who is also Korby's fiancee, on a visit to his remote laboratory. Kirk and Chapel discover that the scientist has been much changed by his recent discovery of alien technology which has allowed the creation of ideal, human-like androids -- including a stunningly attractive female android with whom he seems particularly close. The death of an Enterprise crew member forces Kirk and Chapel to realize that Korby's research has crossed the line into irrational obsession and that they must stop him before they become the next victims.

View Details
Air date: Oct 27, 1966

Exploring the remnants of a plague-ravaged planet, Captain Kirk and an Enterprise landing party unexpectedly discover a number of young children who have survived the otherwise total devastation in this episode of the original Star Trek television series. These children all possess a strong distrust of adults, with the exception of Miri, a young girl who befriends the adults and develops a youthful crush on Kirk. The reason behind the children's animosity becomes clear when the Enterprise crew members discover that they have also been affected by the plague, which prolongs childhood to hundreds of years but brings death to anyone past puberty. Indeed, Kirk himself has contracted the disease and must somehow find a cure -- a quest that becomes all the more difficult when he and Miri, who has also begun to show symptoms, are held captive by a violent gang of children.

View Details
Air date: Nov 3, 1966

While on a routine stop at Tantalus, a rehabilitation facility -- the twenty-third century equivalent of a hospital for the criminally insane -- the starship Enterprise is involved in an unsuccessful escape attempt. Captain Kirk (William Shatner) knows of the sterling reputation of Tantalus under its enlightened director, Dr. Tristan Adams (James Gregory), but he is compelled to investigate, due in part to the concerns of chief medical officer McCoy (DeForest Kelley) over the fragile mental condition of the would-be escapee, Simon Van Gelder (Morgan Woodward) -- and to the fact that Van Gelder is not an inmate at Tantalus, but was assigned there as Adams' assistant. While McCoy tries to help Van Gelder, with some assistance from Spock (Leonard Nimoy) and his Vulcan mind-meld (the first time this is seen in the series), Kirk and a psychiatric expert, Dr. Noelle (Marianna Hill), beam down to the colony. They discover that Adams has been experimenting with a very powerful and dangerous device, the neural neutralizer, using it on staff members as well as inmates to control their thoughts and psyches -- and won't tolerate any interference or inquiries from Kirk or anyone else.

View Details
Air date: Nov 10, 1966

The starship Enterprise encounters a menacing, enigmatic alien called Balok in this installment of the popular science fiction series. After finding the Enterprise's movements blocked by a strange, cube-like device, Captain Kirk orders an attack on the object. At this point, the towering, powerful figure of Balok appears, threatening to destroy the Enterprise. Kirk responds with a risky maneuver involving an obscure mineral known as "corbomite," hoping to outwit the alien. However, there are more surprises in the store, as Kirk discovers that the alien may not be everything he seems. This first season episode was directed by Joseph Sargent, who would later helm The Taking of Pelham One Two Three and numerous other feature films.

View Details
Show More Episodes

Star Trek: Season 1 Photos

Tv Season Info

Captain Kirk, Mr Spock, Dr McCoy and the USS Enterprise crew seek out new civilisations in this seminal sci-fi series.


William Shatner
as Captain James T. Kirk
Leonard Nimoy
as Mr. Spock
DeForest Kelley
as Dr. Leonard McCoy
James Doohan
as Engineer Montgomery Scott
Grace Lee Whitney
as Yeoman Janice Rand
Majel Barrett
as Nurse Chapel
Sean Kenney
as Injured Pike
Percy Rodriguez
as Portmaster Stone
Ken Lynch
as Vanderberg
Robert Brown
as Lazarus
Mark Lenard
as Romulan Commander
Roger Perry
as Captain
Julie Parrish
as Miss Piper
Hal Lynch
as Sergeant
Paul Comi
as Stiles
Grant Woods
as Kelowitz
John Megna
as Fat Boy
Arnold Moss
as Karidian
John Crawford
as Commissioner Ferris
Jon Abbott
as Ayelborne
Laurel Goodwin
as Yoeman J. M. Colt
Jon Lormer
as Dr. Theodore Haskins
John Hoyt
as Dr. Phillip Boyce
John Warburton
as Centurion
Ed Peck
as Colonel Fellini
Jerry Ayres
as O'Herlihy
Makee K. Blaisdell
as Helmsman Spinelli
Gene Lyons
as Ambassador Fox
Janet McLaghien
as Lt. Master
Peter Duryea
as Navigator Jose Tyler
Peter Marko
as Gaetano
Gary Coombes
as Gorn Captain
as Zahra
Charles Stewart
as Capt. Ramart
Meg Wyllie
as The Keeper
Peter Brocco
as Claymare
Paul Fix
as Dr. Mark Piper
Jim Goodwin
as Lt. Farrell
Oliver McGowan
as Caretaker
Paul Carr
as Lt. Lee Kelso
Sid Haig
as First Lawgiver
Clegg Hoyt
as Transporter Chief
Bruce Watson
as Crewman Green
Perry Lopez
as Lt. Rodriguez
Harry Basch
as Dr. Brown
Venita Wolf
as Yeoman Ross
Bartell LaRue
as Guardian of Forever
Stewart Moss
as Tormolen
Bruce Mars
as Finnegan
Ed McCready
as Creature
William Sargent
as Dr. Leighton
Rees Vaughn
as Latimer
Stephen Mines
as Spec. Robert Tomlinson
Michael Zaslow
as Crewman Darnell
Lloyd Haynes
as Mr. Alden
Karl Bruck
as King Duncan
John Bellah
as Dr. Harrison
Francine Pyne
as Blonde Nancy
Sharon Gimpel
as M-113 Creature
Sean Morgan
as Lt. O'Neil
Miko Mayama
as Yeoman Tamura
Joseph Mell
as Slave Trader
Leonard Mudie
as Elderly Survivor
Ed Madden
as Geologist
Show More Cast

News & Interviews for Star Trek: Season 1

Critic Reviews for Star Trek Season 1

All Critics (24) | Top Critics (10)

If you're a science fiction fan, as I am, you'll have fun riding the with Star Trek into the realms of fantasy. It looks like a sure zoomer to popularity.

Oct 24, 2017 | Full Review…

And though the message of peace, progress, and tolerance may seem corny today, I happen to think those are still good ideas. Granted, when you judge it purely as television, the Original Series is a bit weak.

Oct 13, 2017 | Full Review…
Top Critic

It was nothing short of revolutionary, granting TV a few of the first Asian and black characters who weren't reduced to stereotypes.

Oct 30, 2017 | Full Review…

Perhaps the most enduring and all-embracing pop-culture phenomenon of our time.

Oct 30, 2017 | Full Review…

The accent was less on the super-duper gadgetry usually associated with travel and in the heavens than on astronautical soap opera that suffers from interminable flight drag.

Oct 30, 2017 | Full Review…

Despite the modest budget necessitating some daft-looking species, occasionally wonky sets and amusingly clumsy shifts between the stars and their stunt doubles, many of the stories offered thoughtful science-fiction that tackled ethical issues.

Oct 13, 2017 | Rating: 5/5 | Full Review…

Thoughtful, intelligent, and immensely entertaining from the jump.

Sep 18, 2018 | Full Review…

The original Star Trek introducing a broad audience to the joys of science fiction and providing a more optimistic view of the future at the height of Viet Nam, the Cold War and the struggles of the Civil Rights Movement.

May 22, 2018 | Full Review…

This one looks like the son of Twilight Zone, cousin to The Outer Limits and neighbor of Lost in Space, combining the better elements of all those shows.

Oct 30, 2017 | Full Review…

It's had high points, and the occasional trough, but I've found it massively entertaining.

Oct 13, 2017 | Full Review…

A TV-friendly combination of campy action, loosely-clad chicks, and the allegory and philosophical speculation of then-current dramatic series like The Twilight Zone and The Outer Limits.

Oct 13, 2017 | Rating: 4.5/5 | Full Review…

TOS season one is one of the best seasons of television Trek has ever produced.

Oct 12, 2017 | Rating: 9/10 | Full Review…

Audience Reviews for Star Trek: Season 1

  • Jan 23, 2019
    From visionary Gene Roddenberry comes the classic science fiction series Star Trek. Season 1 follow the starship Enterprise as it boldly goes where no man has gone before - exploring the galaxy, meeting new alien races, and battling the imperialistic Klingons. Featuring such episodes as "The Enemy Within," "Dagger of the Mind," "Balance of Terror," "Space Seed," and "The City on the Edge of Forever," the series really hits the ground running; tackling powerful and proactive social and political issues while also delivering plenty of action and adventure. Starring William Shatner, Leonard Nimoy, and DeForest Kelley, the show has a great cast that has extraordinarily good chemistry together. Also, the costumes, sets designs, and makeup effects hold up remarkable well (for the most part), having a retro '60s sci-fi aesthetic; which the remastered editions do an impressive job of sticking to. Season 1 of Star Trek is incredibly strong and lays the foundation for what would become one of the most influential and beloved science fiction franchises.
    Dann M Super Reviewer
  • Jul 07, 2020
    My favorite series of the 1960's. Classic series.
  • Apr 10, 2020
    Although it may appear very campy, It utilizes that campiness to create an intriguing, and sometimes funny, watching experience. Another benefit is the amazing casting and crew, they compliment's each other's personalities wonderfully, becoming even better in Season 2.
  • Feb 18, 2020
    Decades ahead of it's time, progressive on every front, and some of the smartest Sci-Fi writing of all time. Star Trek challenged the status quo of it's day, but made all the better for wonderfully hammy performances from the main cast. A true classic and a cultural delight.
  • Feb 12, 2020
    Absolutely fantastic!
  • Feb 10, 2020
    Excellent show for the time, but too slow for today. The greatness of it is the origin of the saga
  • Jan 13, 2020
    The original Star Trek is classic. The music is spectacular the effects (at the time) were impressive, the writing is SO GOOD. Every story is interesting and it is a true space exploration show. It is lighthearted and fun. What an amazing and optimistic view of the future.
  • Oct 09, 2019
    Creative inventive awesome
  • Aug 07, 2019
    A wonderful series that introduced us to an alien universe. Star Trek was the first Science Fiction show that did not portray aliens as monsters to be destroyed or wanting to destroy us. That one concept made the foundation to the series and drew viewers in who were so tired of the 1950's alien monster movies.
  • Feb 22, 2019
    While The Original Series suffers from dated sets, dated effects, dated portrayals of women, and acting which varies vastly in quality, the writing in the best episodes still holds up 50 years later. TOS contains a fair number of duds, but Season 1 contains more hits than misses. The highlights of the first season include "The Conscience of the King", an interesting look into the mind of a mass murderer mixed with clever references to Shakespeare and "The City on the Edge of Forever", possibly the most critically acclaimed episode of the franchise and not without reason. Even the weaker aspects of the weaker episodes of the season (with the exception of the sexism) are vaguely charming in the same way as a Roger Corman flick or an old monster movie. On a more academic note, the series is also an important watch for anyone interested in the science fiction genre, as Star Trek has influenced everything from Black Mirror to Futurama to Babylon 5. The dated aspects of the show mean that it is not for everyone, but the show is rewarding to those who persevere.

News & Features