This is a list of writers for the original Star Trek television series sorted by the amount of episodes written. Collaborations are marked with dashes. (-) Contributions, pseudonyms and episode numbers are noted in parenthesis.
13 episodes[]
- Gene L. Coon
- "Arena" (S01E18) (Teleplay)
- "Space Seed" (S01E22) (Teleplay - with Carey Wilber)
- "A Taste of Armageddon" (S01E23) (Teleplay - with Robert Hamner)
- "The Devil in the Dark" (S01E25)
- "Errand of Mercy" (S01E26)
- "The Apple" (S02E05) (Teleplay - with Max Ehrlich)
- "Metamorphosis" (S02E09)
- "A Piece of the Action" (S02E17) (Teleplay - with David P. Harmon)
- "Bread and Circuses" (S02E25) - with Gene Roddenberry
- "Spock's Brain" (S03E01) (as Lee Cronin)
- "Spectre of the Gun" (S03E06) (as Lee Cronin)
- "Wink of an Eye" (S03E11) (Story, as Lee Cronin)
- "Let That Be Your Last Battlefield" (S03E15) (Story, as Lee Cronin)
12 episodes[]
- Gene Roddenberry
- "The Cage"
- "Charlie X" (S01E02) (Story)
- "Mudd's Women" (S01E06) (Story)
- "The Menagerie, Part I" (S01E11)
- "The Menagerie, Part II" (S01E12)
- "The Return of the Archons" (S01E21) (Story)
- "A Private Little War" (S02E19) (Teleplay)
- "The Omega Glory" (S02E23)
- "Bread and Circuses" (S02E25) - with Gene L. Coon
- "Assignment: Earth" (S02E26) (Story - with Art Wallace)
- "The Savage Curtain" (S03E22) (Teleplay - with Arthur Heinemann) / (Story)
- "Turnabout Intruder" (S03E24) (Story)
10 episodes[]
- D. C. Fontana
- "Charlie X" (S01E02) (Teleplay)
- "Tomorrow Is Yesterday" (S01E19)
- "This Side of Paradise" (S01E24) (Teleplay) / (Story - with Jerry Sohl)
- "Journey to Babel" (S02E10)
- "Friday's Child" (S02E11)
- "By Any Other Name" (S02E22) (Teleplay - with Jerome Bixby)
- "The Ultimate Computer" (S02E24) (Teleplay)
- "The Enterprise Incident" (S03E02)
- "That Which Survives" (S03E17) (Story, as Michael Richards)
- "The Way to Eden" (S03E20) (Story, as Michael Richards - with Arthur Heinemann)
4 episodes[]
- John Meredyth Lucas
- "The Changeling" (S02E03)
- "Patterns of Force" (S02E21)
- "Elaan of Troyius" (S03E13)
- "That Which Survives" (S03E17) (Teleplay)
- Jerome Bixby
- "Mirror, Mirror" (S02E04)
- "By Any Other Name" (S02E22) (Teleplay - with D. C. Fontana) / (Story)
- "Day of the Dove" (S03E07)
- "Requiem for Methuselah" (S03E19)
3 episodes[]
- Robert Bloch
- "What Are Little Girls Made Of?" (S01E07)
- "Catspaw" (S02E07)
- "Wolf in the Fold" (S02E14)
- Jerry Sohl
- "The Corbomite Maneuver" (S01E10)
- "This Side of Paradise" (S01E24) (Story, as Nathan Butler - with D. C. Fontana)
- "Whom Gods Destroy" (S03E14) (Story - with Lee Erwin)
- Oliver Crawford
- "The Galileo Seven" (S01E16) (Teleplay - with S. Bar-David) / (Story)
- "Let That Be Your Last Battlefield" (S03E15) (Teleplay)
- "The Cloud Minders" (S03E21) (Story - with David Gerrold)
- Margaret Armen
- "The Gamesters of Triskelion" (S02E16)
- "The Paradise Syndrome" (S03E03)
- "The Cloud Minders" (S03E21) (Teleplay)
- Arthur Heinemann
- "Wink of an Eye" (S03E11) (Teleplay)
- "The Way to Eden" (S03E20) (Teleplay) / (Story - with D. C. Fontana)
- "The Savage Curtain" (S03E22) (Teleplay - with Gene Roddenberry)
2 episodes[]
- Stephen Kandel
- "Mudd's Women" (S01E06) (Teleplay)
- "I, Mudd" (S02E08)
- S. Bar-David
- "Dagger of the Mind" (S01E09)
- "The Galileo Seven" (S01E16) (Teleplay - with Oliver Crawford)
- Paul Schneider
- "Balance of Terror" (S01E14)
- "The Squire of Gothos" (S01E17)
- Theodore Sturgeon
- "Shore Leave" (S01E15)
- "Amok Time" (S02E01)
- Steven W. Carabatsos
- "Court Martial" (S01E20) (Teleplay - with Don M. Mankiewicz)
- "Operation: Annihilate!" (S01E29)
- David P. Harmon
- "The Deadly Years" (S02E12)
- "A Piece of the Action" (S02E17) (Teleplay - with Gene L. Coon) / (Story)
- Art Wallace
- "Obsession" (S02E13)
- "Assignment: Earth" (S02E26) (Teleplay) / (Story - with Gene Roddenberry)
- David Gerrold
- "The Trouble with Tribbles" (S02E15)
- "The Cloud Minders" (S03E21) (Story - with Oliver Crawford)
- Jean Lisette Aroeste
- "Is There in Truth No Beauty?" (S03E05)
- "All Our Yesterdays" (S03E23)
1 episode[]
- George Clayton Johnson - "The Man Trap" (S01E01)
- Samuel A. Peeples - "Where No Man Has Gone Before" (S01E03)
- John D. F. Black - "The Naked Time" (S01E04)
- Richard Matheson - "The Enemy Within" (S01E05)
- Adrian Spies - "Miri" (S01E08)
- Barry Trivers - "The Conscience of the King" (S01E13)
- Fredric Brown - "Arena" (S01E18) (Story)
- Don M. Mankiewicz - "Court Martial" (S01E20) (Teleplay - with Steven W. Carabatsos) / (Story)
- Boris Sobelman - "The Return of the Archons" (S01E21) (Teleplay)
- Carey Wilber - "Space Seed" (S01E22) (Teleplay - with Gene L. Coon) / (Story)
- Robert Hamner - "A Taste of Armageddon" (S01E23) (Teleplay - with Gene L. Coon) / (Story)
- Don Ingalls - "The Alternative Factor" (S01E27)
- Harlan Ellison - "The City on the Edge of Forever" (S01E28)
- Gilbert Ralston - "Who Mourns for Adonais?" (S02E02)
- Max Ehrlich - "The Apple" (S02E05) (Teleplay - with Gene L. Coon( / (Story)
- Norman Spinrad - "The Doomsday Machine" (S02E06)
- Robert Sabaroff - "The Immunity Syndrome" (S02E18)
- Jud Crucis - "A Private Little War" (S02E19) (Story)
- John Kingsbridge - "Return to Tomorrow" (S02E20)
- Laurence N. Wolfe - "The Ultimate Computer" (S02E24) (Story)
- Edward J. Lakso - "And the Children Shall Lead" (S03E04)
- Rik Vollaerts - "For the World Is Hollow and I Have Touched the Sky" (S03E08)
- Judy Burns & Chet Richards - "The Tholian Web" (S03E09)
- Meyer Dolinsky - "Plato's Stepchildren" (S03E10)
- Joyce Muskat - "The Empath" (S03E12)
- Lee Erwin - "Whom Gods Destroy" (S03E14) (Teleplay) / (Story - with Jerry Sohl)
- George F. Slavin & Stanley Adams - "The Mark of Gideon" (S03E16)
- Jeremy Tarcher & Shari Lewis - "The Lights of Zetar" (S03E18)
- Arthur Singer - "Turnabout Intruder" (S03E24) (Teleplay)