Star Trek: The Original Series
Series Overview
Star Trek: The Original Series (referred to as Star Trek prior to any spin-offs) is the first Star Trek series. The first episode of the show aired on 6 September 1966 on CTV in Canada, followed by a 8 September 1966 airing on NBC in America. The show was created by Gene Roddenberry as a "Wagon Train to the Stars". Star Trek was set in the 23rd century and featured the first three years of the voyages of the starship USS Enterprise under Captain James T. Kirk.
Star Trek was later informally dubbed The Original Series, or TOS, after several spin-offs aired. The show lasted three seasons until canceled in 1969. When the show first aired on TV, and until lowering budget issues in its third season resulted in a noticeable drop in quality episodes and placed in a 10 pm Friday night death slot by the network, Star Trek regularly performed respectably in its time slot. After it was canceled and went into syndication, however, its popularity exploded. It featured themes such as a Utopian society and racial equality, and the first African-American officer in a recurring role.
Timeline Placement
Starfleet Temporal Database
Star Trek: The Original Series is set during the historic Five-Year Mission under Captain Kirk.
Main Cast
View all characters in this series
William Shatner
Leonard Nimoy
DeForest Kelley
James Doohan
Nichelle Nichols
George Takei
Walter Koenig
Majel Barrett
Episodes
Season 1
0 The Cage 04/10/1988 —
1 Where No Man Has Gone Before 22/09/1966 1312.4
2 The Corbomite Maneuver 10/11/1966 1512.2
3 Mudd's Women 13/10/1966 1329.8
4 The Enemy Within 06/10/1966 1672.1
5 The Man Trap 08/09/1966 1513.1
6 The Naked Time 29/09/1966 1704.2
7 Charlie X 15/09/1966 1533.6
8 Balance of Terror 15/12/1966 1701.8
9 What Are Little Girls Made Of? 20/10/1966 2712.4
10 Dagger of the Mind 03/11/1966 2715.1
11 Miri 27/10/1966 2713.5
12 The Conscience of the King 08/12/1966 2817.6
13 The Galileo Seven 05/01/1967 2821.5
14 Court Martial 02/02/1967 2947.3
15 The Menagerie, Part I 17/11/1966 3012.4
16 The Menagerie, Part II 24/11/1966 3013.1
17 Shore Leave 29/12/1966 3025.3
18 The Squire of Gothos 12/01/1967 2124.5
19 Arena 19/01/1967 3045.6
20 The Alternative Factor 30/03/1967 3087.6
21 Tomorrow is Yesterday 26/01/1967 3113.2
22 The Return of the Archons 09/02/1967 3156.2
23 A Taste of Armageddon 23/02/1967 3192.1
24 Space Seed 16/02/1967 3141.9
25 This Side of Paradise 02/03/1967 3417.3
26 The Devil in the Dark 09/03/1967 3196.1
27 Errand of Mercy 23/03/1967 3198.4
28 The City on the Edge of Forever 06/04/1967 —
29 Operation -- Annihilate! 13/04/1967 3287.2
Season 2
1 Catspaw 27/10/1967 3018.2
2 Metamorphosis 10/11/1967 3219.8
3 Friday's Child 01/12/1967 3497.2
4 Who Mourns for Adonais? 22/09/1967 3468.1
5 Amok Time 15/09/1967 3372.7
6 The Doomsday Machine 20/10/1967 4202.1
7 Wolf in the Fold 22/12/1967 3614.9
8 The Changeling 29/09/1967 3541.9
9 The Apple 13/10/1967 3715.3
10 Mirror, Mirror 06/10/1967 —
11 The Deadly Years 08/12/1967 3478.2
12 I, Mudd 03/11/1967 4513.3
13 The Trouble with Tribbles 29/12/1967 4523.3
14 Bread and Circuses 15/03/1968 4040.7
15 Journey to Babel 17/11/1967 3842.3
16 A Private Little War 02/02/1968 4211.4
17 The Gamesters of Triskelion 05/01/1968 3211.7
18 Obsession 15/12/1967 3619.2
19 The Immunity Syndrome 19/01/1968 4307.1
20 A Piece of the Action 12/01/1968 —
21 By Any Other Name 23/02/1968 4657.5
22 Return to Tomorrow 09/02/1968 4768.3
23 Patterns of Force 16/02/1968 —
24 The Ultimate Computer 08/03/1968 4729.4
25 The Omega Glory 01/03/1968 —
26 Assignment: Earth 29/03/1968 —
Season 3
1 Spectre of the Gun 25/10/1968 4385.3
2 Elaan of Troyius 20/12/1968 4372.5
3 The Paradise Syndrome 04/10/1968 4842.6
4 The Enterprise Incident 27/09/1968 5027.3
5 And the Children Shall Lead 11/10/1968 5029.5
6 Spock's Brain 20/09/1968 5431.4
7 Is There in Truth No Beauty? 18/10/1968 5630.7
8 The Empath 06/12/1968 5121.5
9 The Tholian Web 15/11/1968 5693.2
10 For the World is Hollow and I Have Touched the Sky 08/11/1968 5476.3
11 Day of the Dove 01/11/1968 —
12 Plato's Stepchildren 22/11/1968 5784.2
13 Wink of an Eye 29/11/1968 5710.5
14 That Which Survives 24/01/1969 —
15 Let That Be Your Last Battlefield 10/01/1969 5730.2
16 Whom Gods Destroy 03/01/1969 5718.3
17 The Mark of Gideon 17/01/1969 5423.4
18 The Lights of Zetar 31/01/1969 5725.3
19 The Cloud Minders 28/02/1969 5818.4
20 The Way to Eden 21/02/1969 5832.3
21 Requiem for Methuselah 14/02/1969 5843.7
22 The Savage Curtain 07/03/1969 5906.4
23 All Our Yesterdays 14/03/1969 5943.7
24 Turnabout Intruder 03/06/1969 5928.5