"The Changeling" was the 37th episode of Star Trek: The Original Series, the 8th episode of the show's second season, first aired on 29 September 1967. The episode was written by John Meredyth Lucas, directed by Marc Daniels and novelized in Star Trek 7 by James Blish.

References[edit | edit source]

Characters[edit | edit source]

Episode characters[edit | edit source]

Clifford BrentCarlisleChristine ChapelBill HadleyJames T. KirkRoger LemliRyan LeslieLeonard McCoyNomadMontgomery ScottHayden SinghSpockHikaru SuluNyota UhuraVinci
Referenced only 
ManwayJackson RoykirkTan Ru

Novelization characters[edit | edit source]

Christine ChapelJames T. KirkLeonard McCoyNomadMontgomery ScottHayden SinghSpockHikaru SuluNyota Uhura
Referenced only 
Jackson Roykirk

Starships and vehicles[edit | edit source]

USS Enterprise (Constitution-class heavy cruiser)

Races and cultures[edit | edit source]

Referenced only 

States and organizations[edit | edit source]


Science and classification[edit | edit source]

anatomyarmatmospherebloodfingergashumanoidlifeformmatterorbitoxygenspacestarSymbalene blood burnuniverse

Technology and weapons[edit | edit source]


Ranks and titles[edit | edit source]

captaincommandercommanding officercommunications officerFederation Starfleet ranksFederation Starfleet ranks (2260s)first officerlieutenant commanderofficerscientistscience officer

Other references[edit | edit source]

Beyond AntaresbootclothingFederation membersfive-year missiongovernmentlanguagelogicmemorynation-statepantsquadrantraces and culturesrankstardateStarfleet uniformStarfleet uniform (2260s)technologytitletunicuniformweapon

Appendices[edit | edit source]

Related media[edit | edit source]

Jackson Roykirk later appeared in the following adventures:

Adaptations[edit | edit source]

Images[edit | edit source]

Connections[edit | edit source]

Timeline[edit | edit source]

published order
Previous episode:
Wolf in the Fold
TOS episode produced Next episode:
The Apple
Previous episode:
Who Mourns for Adonais?
TOS episode aired Next episode:
Mirror, Mirror
Previous story:
Who Mourns for Adonais?
Star Trek 7
Next story:
The Paradise Syndrome
chronological order
Previous Adventure:
Across the Universe
Pocket Next Adventure:
See No Evil
Previous Adventure:
Wolf in the Fold
Voyages of the
USS Enterprise (NCC-1701)
(2264 to 2270)
Next Adventure:
The Apple

External links[edit | edit source]

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