<P> Although her character of Number One was not retained from "The Cage", Majel Barrett returned to the show as a new character, nurse Christine Chapel, and made her first of many recurring appearances in "The Naked Time". Grace Lee Whitney appeared in eight episodes as yeoman Janice Rand, beginning with "The Man Trap". Whitney left the series after "The Conscience of the King", but would later make minor appearances in the first, third, fourth, and sixth Trek films as well as one episode of the companion series Star Trek: Voyager . </P> <P> Star Trek's first season comprised 29 episodes, including the two - part episode "The Menagerie", which includes much of the footage from the original pilot, "The Cage". Other notable episodes include "Balance of Terror", which introduces the Romulans; "Space Seed", which introduces Khan Noonien Singh and serves as the basis for Star Trek II: The Wrath of Khan; "Errand of Mercy", in which the Klingons make their first appearance; and the critically acclaimed, Hugo - Award - winning episode "The City on the Edge of Forever", which features Kirk, Spock, and McCoy traveling into the past through the Guardian of Forever . </P> <Table> <Tr> <Th> No . overall </Th> <Th> No. in season </Th> <Th> Title </Th> <Th> Stardate </Th> <Th> Directed by </Th> <Th> Written by </Th> <Th> Original air date </Th> <Th> Prod . code </Th> </Tr> <Tr> <Th> </Th> <Td> </Td> <Td> "The Man Trap" </Td> <Td> 1513.1 </Td> <Td> Marc Daniels </Td> <Td> George Clayton Johnson </Td> <Td> September 8, 1966 (1966 - 09 - 08) </Td> <Td> 06 </Td> </Tr> <Tr> <Th> </Th> <Td> </Td> <Td> "Charlie X" </Td> <Td> 1533.6 </Td> <Td> Lawrence Dobkin </Td> <Td> Story by: Gene Roddenberry Teleplay by: D.C. Fontana </Td> <Td> September 15, 1966 (1966 - 09 - 15) </Td> <Td> 08 </Td> </Tr> <Tr> <Th> </Th> <Td> </Td> <Td> "Where No Man Has Gone Before" </Td> <Td> 1312.4 </Td> <Td> James Goldstone </Td> <Td> Samuel A. Peeples </Td> <Td> September 22, 1966 (1966 - 09 - 22) </Td> <Td> 02b </Td> </Tr> <Tr> <Th> </Th> <Td> </Td> <Td> "The Naked Time" </Td> <Td> 1704.2 </Td> <Td> Marc Daniels </Td> <Td> John D.F. Black </Td> <Td> September 29, 1966 (1966 - 09 - 29) </Td> <Td> 07 </Td> </Tr> <Tr> <Th> 5 </Th> <Td> 5 </Td> <Td> "The Enemy Within" </Td> <Td> 1672.1 </Td> <Td> Leo Penn </Td> <Td> Richard Matheson </Td> <Td> October 6, 1966 (1966 - 10 - 06) </Td> <Td> 05 </Td> </Tr> <Tr> <Th> 6 </Th> <Td> 6 </Td> <Td> "Mudd's Women" </Td> <Td> 1329.8 </Td> <Td> Harvey Hart </Td> <Td> Story by: Gene Roddenberry Teleplay by: Stephen Kandel </Td> <Td> October 13, 1966 (1966 - 10 - 13) </Td> <Td> 04 </Td> </Tr> <Tr> <Th> 7 </Th> <Td> 7 </Td> <Td> "What Are Little Girls Made Of?" </Td> <Td> 2712.4 </Td> <Td> James Goldstone </Td> <Td> Robert Bloch </Td> <Td> October 20, 1966 (1966 - 10 - 20) </Td> <Td> 10 </Td> </Tr> <Tr> <Th> 8 </Th> <Td> 8 </Td> <Td> "Miri" </Td> <Td> 2713.5 </Td> <Td> Vincent McEveety </Td> <Td> Adrian Spies </Td> <Td> October 27, 1966 (1966 - 10 - 27) </Td> <Td> 12 </Td> </Tr> <Tr> <Th> 9 </Th> <Td> 9 </Td> <Td> "Dagger of the Mind" </Td> <Td> 2715.1 </Td> <Td> Vincent McEveety </Td> <Td> S. Bar - David </Td> <Td> November 3, 1966 (1966 - 11 - 03) </Td> <Td> 11 </Td> </Tr> <Tr> <Th> 10 </Th> <Td> 10 </Td> <Td> "The Corbomite Maneuver" </Td> <Td> 1512.2 </Td> <Td> Joseph Sargent </Td> <Td> Jerry Sohl </Td> <Td> November 10, 1966 (1966 - 11 - 10) </Td> <Td> 03 </Td> </Tr> <Tr> <Th> 11 12 </Th> <Td> 11 12 </Td> <Td> "The Menagerie" </Td> <Td> 3012.4 3013.1 </Td> <Td> Marc Daniels Robert Butler </Td> <Td> Gene Roddenberry </Td> <Td> November 17, 1966 (1966 - 11 - 17) November 24, 1966 (1966 - 11 - 24) </Td> <Td> 16 </Td> </Tr> <Tr> <Th> 13 </Th> <Td> 13 </Td> <Td> "The Conscience of the King" </Td> <Td> 2817.6 </Td> <Td> Gerd Oswald </Td> <Td> Barry Trivers </Td> <Td> December 8, 1966 (1966 - 12 - 08) </Td> <Td> 13 </Td> </Tr> <Tr> <Th> 14 </Th> <Td> 14 </Td> <Td> "Balance of Terror" </Td> <Td> 1709.2 </Td> <Td> Vincent McEveety </Td> <Td> Paul Schneider </Td> <Td> December 15, 1966 (1966 - 12 - 15) </Td> <Td> 09 </Td> </Tr> <Tr> <Th> 15 </Th> <Td> 15 </Td> <Td> "Shore Leave" </Td> <Td> 3025.3 </Td> <Td> Robert Sparr </Td> <Td> Theodore Sturgeon </Td> <Td> December 29, 1966 (1966 - 12 - 29) </Td> <Td> 17 </Td> </Tr> <Tr> <Th> 16 </Th> <Td> 16 </Td> <Td> "The Galileo Seven" </Td> <Td> 2821.5 </Td> <Td> Robert Gist </Td> <Td> Story by: Oliver Crawford Teleplay by: Oliver Crawford and S. Bar - David </Td> <Td> January 5, 1967 (1967 - 01 - 05) </Td> <Td> 14 </Td> </Tr> <Tr> <Th> 17 </Th> <Td> 17 </Td> <Td> "The Squire of Gothos" </Td> <Td> 2124.5 </Td> <Td> Don McDougall </Td> <Td> Paul Schneider </Td> <Td> January 12, 1967 (1967 - 01 - 12) </Td> <Td> 18 </Td> </Tr> <Tr> <Th> 18 </Th> <Td> 18 </Td> <Td> "Arena" </Td> <Td> 3045.6 </Td> <Td> Joseph Pevney </Td> <Td> Story by: Fredric Brown Teleplay by: Gene L. Coon </Td> <Td> January 19, 1967 (1967 - 01 - 19) </Td> <Td> 19 </Td> </Tr> <Tr> <Th> 19 </Th> <Td> 19 </Td> <Td> "Tomorrow Is Yesterday" </Td> <Td> 3113.2 </Td> <Td> Michael O'Herlihy </Td> <Td> D.C. Fontana </Td> <Td> January 26, 1967 (1967 - 01 - 26) </Td> <Td> 21 </Td> </Tr> <Tr> <Th> 20 </Th> <Td> 20 </Td> <Td> "Court Martial" </Td> <Td> 2947.3 </Td> <Td> Marc Daniels </Td> <Td> Story by: Don M. Mankiewicz Teleplay by: Don M. Mankiewicz and Steven W. Carabatsos </Td> <Td> February 2, 1967 (1967 - 02 - 02) </Td> <Td> 15 </Td> </Tr> <Tr> <Th> 21 </Th> <Td> 21 </Td> <Td> "The Return of the Archons" </Td> <Td> 3156.2 </Td> <Td> Joseph Pevney </Td> <Td> Story by: Gene Roddenberry Teleplay by: Boris Sobelman </Td> <Td> February 9, 1967 (1967 - 02 - 09) </Td> <Td> 22 </Td> </Tr> <Tr> <Th> 22 </Th> <Td> 22 </Td> <Td> "Space Seed" </Td> <Td> 3141.9 </Td> <Td> Marc Daniels </Td> <Td> Story by: Carey Wilber Teleplay by: Gene L. Coon and Carey Wilber </Td> <Td> February 16, 1967 (1967 - 02 - 16) </Td> <Td> 24 </Td> </Tr> <Tr> <Th> 23 </Th> <Td> 23 </Td> <Td> "A Taste of Armageddon" </Td> <Td> 3192.1 </Td> <Td> Joseph Pevney </Td> <Td> Story by: Robert Hamner Teleplay by: Robert Hamner and Gene L. Coon </Td> <Td> February 23, 1967 (1967 - 02 - 23) </Td> <Td> 23 </Td> </Tr> <Tr> <Th> 24 </Th> <Td> 24 </Td> <Td> "This Side of Paradise" </Td> <Td> 3417.3--3417.7 </Td> <Td> Ralph Senensky </Td> <Td> Story by: Nathan Butler and D.C. Fontana Teleplay by: D.C. Fontana </Td> <Td> March 2, 1967 (1967 - 03 - 02) </Td> <Td> 25 </Td> </Tr> <Tr> <Th> 25 </Th> <Td> 25 </Td> <Td> "The Devil in the Dark" </Td> <Td> 3196.1 </Td> <Td> Joseph Pevney </Td> <Td> Gene L. Coon </Td> <Td> March 9, 1967 (1967 - 03 - 09) </Td> <Td> 26 </Td> </Tr> <Tr> <Th> 26 </Th> <Td> 26 </Td> <Td> "Errand of Mercy" </Td> <Td> 3198.4 </Td> <Td> John Newland </Td> <Td> Gene L. Coon </Td> <Td> March 23, 1967 (1967 - 03 - 23) </Td> <Td> 27 </Td> </Tr> <Tr> <Th> 27 </Th> <Td> 27 </Td> <Td> "The Alternative Factor" </Td> <Td> 3087.6 </Td> <Td> Gerd Oswald </Td> <Td> Don Ingalls </Td> <Td> March 30, 1967 (1967 - 03 - 30) </Td> <Td> 20 </Td> </Tr> <Tr> <Th> 28 </Th> <Td> 28 </Td> <Td> "The City on the Edge of Forever" </Td> <Td> 3134.0 </Td> <Td> Joseph Pevney </Td> <Td> Harlan Ellison </Td> <Td> April 6, 1967 (1967 - 04 - 06) </Td> <Td> 28 </Td> </Tr> <Tr> <Th> 29 </Th> <Td> 29 </Td> <Td> "Operation: Annihilate!" </Td> <Td> 3287.2 </Td> <Td> Herschel Daugherty </Td> <Td> Steven W. Carabatsos </Td> <Td> April 13, 1967 (1967 - 04 - 13) </Td> <Td> 29 </Td> </Tr> </Table> <Tr> <Th> No . overall </Th> <Th> No. in season </Th> <Th> Title </Th> <Th> Stardate </Th> <Th> Directed by </Th> <Th> Written by </Th> <Th> Original air date </Th> <Th> Prod . code </Th> </Tr>

What was the very first star trek episode
find me the text answering this question