The Changeling

The Changeling
Attribution
Series:	The Original Series
Written by:	John Meredyth Lucas
Directed by:	Marc Daniels
Novelization in:	Star Trek 7 by James Blish
Production information
Episode no.:	2x08
Production no.:	6149-37
First aired:	29 September 1967
Chronology
Date:	2267
Stardate:	3541.9

"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

Characters

Episode characters

Clifford Brent • Carlisle • Christine Chapel • Bill Hadley • James T. Kirk • Roger Lemli • Ryan Leslie • Leonard McCoy • Nomad • Montgomery Scott • Hayden Singh • Spock • Hikaru Sulu • Nyota Uhura • Vinci

Referenced only 

Manway • Jackson Roykirk • Tan Ru

Novelization characters

Christine Chapel • James T. Kirk • Leonard McCoy • Nomad • Montgomery Scott • Hayden Singh • Spock • Hikaru Sulu • Nyota Uhura

Referenced only 

Jackson Roykirk

Starships and vehicles

USS Enterprise (Constitution-class heavy cruiser)

Races and cultures

Human • Vulcan

Referenced only 

Malurian

States and organizations

Federation • Starfleet

Science and classification

anatomy • arm • atmosphere • blood • finger • gas • humanoid • lifeform • matter • orbit • oxygen • space • star • Symbalene blood burn • universe

Technology and weapons

starship • viewscreen

Ranks and titles

captain • commander • commanding officer • communications officer • Federation Starfleet ranks • Federation Starfleet ranks (2260s) • first officer • lieutenant commander • officer • scientist • science officer

Other references

Beyond Antares • boot • clothing • Federation members • five-year mission • government • language • logic • memory • nation-state • pants • quadrant • races and cultures • rank • stardate • Starfleet uniform • Starfleet uniform (2260s) • technology • title • tunic • uniform • weapon

Appendices

Related media

Jackson Roykirk later appeared in the following adventures:

• TOS - The Eugenics Wars novel: The Rise and Fall of Khan Noonien Singh, Volume 1
• TOS - The Eugenics Wars novel: The Rise and Fall of Khan Noonien Singh, Volume 2

Adaptations

Novelized in Star Trek 7.

Novelized in Star Trek 7 reprint.

Novelized in Star Trek 7 reprint.

Novelized in Star Trek 7 reprint.

Novelization collected in The Classic Episodes 2.

Novelization collected in The Classic Episodes.

Images

Episode image.

Episode image.

Episode image.

Episode image.

Connections

Timeline

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

• The Changeling article at Memory Alpha, the wiki for canon Star Trek.
• The Changeling (Star Trek) article at Wikipedia, the free encyclopedia.

This character was not named in the episode but the same actor, wearing an officer's Starfleet uniform, was addressed as Brent in TOS episode: "The Naked Time". The same actor also played the character of Vinci.

This character was not named in the episode but the same actor, wearing the same operations division Starfleet uniform, was addressed as Vinci in TOS episode: "The Devil in the Dark". The same actor also played the character of Clifford Brent.