Star Trek: Season 1
1966 · 29 episodes · ★ 7.3
What Season 1 of Star Trek
In the year 2264, Captain James T. Kirk takes command of the USS Enterprise, a Constitution-class starship, to explore unknown worlds and make contact with civilizations no one has ever visited. During the first three years of the voyage, the crew encounters shape-shifting creatures, con artists, killers, and beings with all kinds of mental powers. Every mission demands quick decisions. The main conflict stems from the differences between Spock, who puts logic ahead of emotion, and his crewmates, who are guided by instinct and a sense of responsibility. A friendship develops between Kirk, Dr. McCoy, and the Vulcan.
Season 1 Episodes
1x01 The Man Trap
Doctor Leonard “Bones” McCoy meets a former girlfriend when the enterprise brings supplies to a remote archaeological survey group. Still attractive to McCoy, the woman's current appearance hides a dark and deadly secret.
Directed by Marc Daniels · Written by George Clayton Johnson · Starring Michael Zaslow, Alfred Ryder, Jeanne Bal, Bruce Watson
1x02 Charlie X
Raised from boyhood by non-corporeal beings, 17 year old Charles Evans is picked up and transferred to the Enterprise. On board the ship, the teenager proves dangerously unable to wield his enormous psionic powers with maturity.
Directed by Lawrence Dobkin · Written by Gene Roddenberry, D.C. Fontana · Starring Robert Walker Jr., Eddie Paskey, Charles Stewart, Grace Lee Whitney
1x03 Where No Man Has Gone Before
When Enterprise encounters a Force Field at the edge of the Galaxy, one of the crew members psionic abilities are accelerated to God like proportions causing him to become a powerful murderous being.
Directed by: James Goldstone · Written by: Samuel A. Peeples · Starring: Gary Lockwood, Eddie Paskey, Paul Fix, Paul Carr
1x04 The Naked Time
An alien virus strips the enterprise crew of their inhibitions, causing chaos as each crew member is overcome by hidden emotions. Meanwhile, the Enterprise is being pulled inexorably into a nearby planet's gravity well.
Directed by: Marc Daniels · Written by: John D. F. Black · Starring: Eddie Paskey, Bruce Hyde, Grace Lee Whitney, Majel Barrett
1x05 The Enemy Within
Split by a transporter malfunction into two beings with very different personalities, the resulting twin Captain Kirk proves that neither a purely evil nor a sweetly good captain can survive without the missing half.
Directed by: Leo Penn · Writing: Richard Matheson · Starring: Eddie Paskey, Grace Lee Whitney, Jim Goodwin, Edward Madden
1x06 Mudd's Women
Rescuing the crew of a ship from an asteroid belt, the Enterprise plays host to conman extraordinaire, the cunning Harry Mudd and his cargo: three beautiful women looking for suitors.
Directed by Harvey Hart · Written by Gene Roddenberry, Stephen Kandel · Starring Roger C. Carmel, Karen Steele, Susan Denberg, Maggie Thrett
1x07 What Are Little Girls Made Of?
Helping nurse Christine Chapel search for her fiancé, the Enterprise finds a detached Dr. Korby working on a plan to create Android duplicates of key figures, beginning with James Kirk.
Directed by: James Goldstone · Written by: Robert Bloch · Starring: Harry Basch, Sherry Jackson, Eddie Paskey, Michael Strong
1x08 Miri
On a planet populated by children whose aging process has been slowed artificially. Kirk’s landing party members contract a virus that kills adults. Despite their violent attacks, Kirk is determined to help the children.
Directed by: Vincent McEveety · Written by: Adrian Spies · Starring: Kim Darby, Michael J. Pollard, Stephen McEveety, Grace Lee Whitney
1x09 Dagger of the Mind
When a wild eyed maniac escaping from the Tantalus Penal Colony turns out to be one of the psychiatric staff, Kirk investigates the institution and discovers a chilling exercise in mind control.
Directed by: Vincent McEveety · Writing: Shimon Wincelberg · Starring: Marianna Hill, James Gregory, Eddie Paskey, Susanne Wasson
1x10 The Corbomite Maneuver
Threatened by the sinister captain of a powerful alien vessel, Kirk claims that the Enterprise carries a powerful explosive which will destroy both ships. The move produces unexpected actions from the alien adversary.
Directed by Joseph Sargent · Written by Jerry Sohl · Starring Clint Howard, John Gabriel, Eddie Paskey, Vic Perrin
1x11 The Menagerie (1)
Apparently summoned to Star Base 11, Kirk, Spock and McCoy visit a former Enterprise Commander, the paralyzed and horribly disfigured Christopher Pike. Uncharacteristically, Spock commandeers the Enterprise, then turns himself in for court martial.
Directed by Robert Butler, Marc Daniels · Written by Gene Roddenberry · Starring Julie Parrish, Sean Kenney, Leonard Mudie, Hagan Beggs
1x12 The Menagerie (2)
Spock's court martial reveals the actions of Captain Pike on his previous visit to Talos IV, where the powerful Talosians tried to persuade Pike to breed with women provided for the purpose.
Directed by: Marc Daniels, Robert Butler · Written by: Gene Roddenberry · Starring: Susan Oliver, Laurel Goodwin, Jeffrey Hunter, Georgia Schmidt
1x13 The Conscience of the King
Contacted by one of the other two witnesses to the crimes of mass murderer “Kodos the Executioner,” Kirk is persuaded that the criminal may be disguising himself as an actor in a traveling theatrical troupe.
Directed by: Gerd Oswald · Writing: Barry Trivers · Starring: Arnold Moss, Eddie Paskey, Barbara Anderson, Bruce Hyde
1x14 Balance of Terror
Despite the earlier Romulan war, the Romulans have never been seen in person. The Enterprise, in pursuit of a Romulan aggressor, makes a discovery that causes suspicion about a senior crew member.
Directed by: Vincent McEveety · Writing: Paul Schneider · Starring: Lawrence Montaigne, Grace Lee Whitney, Mark Lenard, Paul Comi
1x15 Shore Leave
When McCoy sees the White Rabbit from Alice in Wonderland, the crew begins to realize that the planet they are visiting seems to have the dangerous power to turn any thought into reality.
Directed by: Robert Sparr · Written by: Theodore Sturgeon · Starring: Perry Lopez, Shirley Bonne, Oliver McGowan, Bruce Mars
1x16 The Galileo Seven
Crash landing on a planet populated by hostile giants, the 7-man crew of the shuttlecraft Galileo find themselves unable to communicate with the enterprise or to escape the planet's atmosphere.
Directed by: Robert Gist · Written by: Shimon Wincelberg, Oliver Crawford · Starring: Don Marshall, John Crawford, Phyllis Douglas, Peter Marko
1x17 The Squire of Gothos
Encountering an uncharted planet in an empty region of space, Kirk and his crew are entertained by Trelane, a playful being who lacks the self-control to wield his great psionic powers with discipline.
Directed by: Donnie McDougall · Written by: Paul Schneider · Starring: William Campbell, Eddie Paskey, Michael Barrier, Richard Carlyle
1x18 Arena
With both their ships held captive by powerful beings, Kirk and the captain of the alien vessel are placed on an asteroid to fight for their lives and the lives of their crews.
Directed by: Joseph Pevney · Writing: Gene L. Coon, Fredric Brown · Starring: Eddie Paskey, Ted Cassidy, Sean Kenney, James Farley
1x19 Tomorrow Is Yesterday
In a freak accident the Enterprise is sent back to 20th century Earth, and must find their way back without changing history.
Directed by Michael O'Herlihy · Written by D.C. Fontana · Starring Roger Perry, Ed Peck, John Winston, Hal Lynch
1x20 Court Martial
Captain Kirk's career is at stake when he is put on trial for the loss of a crewman during an ion storm.
Directed by: Marc Daniels · Writing: Don Mankiewicz, Steven W. Carabatsos · Starring: Elisha Cook Jr., Richard Webb, Percy Rodriguez, Joan Marshall
1x21 The Return of the Archons
The Enterprise encounters a seemingly peaceful civilization run by a "benevolent" being named Landru... who intends for them to join his people.
Directed by: Joseph Pevney · Written by: Gene Roddenberry, Boris Sobelman · Starring: Sid Haig, Brioni Farrell, Eddie Paskey, Torin Thatcher
1x22 Space Seed
The Enterprise picks up a crew of genetic supermen from the 20th century... and their leader, Khan, plans to create a new empire.
Directed by: Marc Daniels · Writing: Gene L. Coon, Carey Wilber · Starring: Ricardo Montalban, Madlyn Rhue, Eddie Paskey, John Winston
1x23 A Taste of Armageddon
The Enterprise arrives at a planet to establish diplomatic relations and finds itself in the middle of a "peaceful" war that threatens to destroy the ship.
Directed by: Joseph Pevney · Writing: Robert Hamner, Gene L. Coon · Starring: David Opatoshu, Eddie Paskey, Sean Kenney, Barbara Babcock
1x24 This Side of Paradise
The Enterprise crew try to rescue colonists from deadly radiation, but instead encounter strange alien spores that seem to offer paradise.
Directed by: Ralph Senensky · Writing: D.C. Fontana, Jerry Sohl · Starring: Jill Ireland, Frank Overton, Eddie Paskey, Michael Barrier
1x25 The Devil in the Dark
Kirk investigates a series of grisly murders on a mining planet that are the work of a seemingly hostile alien creature.
Directed by: Joseph Pevney · Written by: Gene L. Coon · Starring: Eddie Paskey, Ken Lynch, Brad Weston, Biff Elliot
1x26 Errand of Mercy
The Federation and the Klingon Empire teeter on the brink of war as Kirk investigates Organia, a humble planet, inhabited by pacifists, that is unwittingly caught in the middle.
Directed by: John Newland · Written by: Gene L. Coon · Starring: John Colicos, John Abbott, Eddie Paskey, Peter Brocco
1x27 The Alternative Factor
Kirk and Spock encounter an alien named Lazarus who claims to be from an anti-matter universe.
Directed by: Gerd Oswald · Written by: Don Ingalls · Starring: Robert Brown, Eddie Paskey, Janet MacLachlan, Richard Derr
1x28 The City on the Edge of Forever
Kirk and Spock must travel into the past in order to correct a change that will alter history.
Directed by Joseph Pevney · Written by D.C. Fontana, Harlan Ellison · Starring Joan Collins, Eddie Paskey, Howard Culver, John Winston
1x29 Operation: Annihilate! Season Finale
Kirk and the Enterprise must combat parasitic aliens threatening the lives of millions.
Directed by: Herschel Daugherty · Written by: Steven W. Carabatsos · Starring: Craig Huxley, Eddie Paskey, Joan Swift, Maurishka
Season 1 Cast
James DoohanScott29 episodes
Eddie PaskeyLieutenant Ryan (uncredited)21 episodes
Frank da VinciEminiar Guard21 episodes
Ron VetoEminiar Guard18 episodes
David L. RossGalloway5 episodes
Majel BarrettChristine Chapel4 episodes
John WinstonLieutenant Kyle3 episodes
Jim GoodwinFarrell3 episodes
Sean KenneyCrippled Pike3 episodes
Bruce HydeLt. Kevin Thomas Riley2 episodes
Walker EdmistonTransporter Chief (voice) (uncredited)2 episodes
Barbara BaldavinAngela Martine2 episodesAll Seasons
Season 21967 · 26 eps · 
Season 31968 · 24 eps · Where to Watch Season 1 of Star Trek
It is currently not available on the major streaming platforms.
Frequently Asked Questions
How Many Episodes Are in Star Trek Season 1?
Star Trek Season 1 has 29 episodes.
When did Star Trek Season 1 premiere?
Premiered on September 8, 1966.
Where to Watch Star Trek Season 1?
Currently not available on the major subscription platforms (availability may vary by country).
What is the best episode of Season 1?
According to the TMDB audience rating, episode 1x28, "The City on the Edge of Forever," has a 8.6.