"Elaan of Troyius" was the 57th episode of Star Trek: The Original Series, the 2nd episode of the show's third and final season, first aired on 20 December 1968. The episode was written and directed by John Meredyth Lucas and novelized in Star Trek 7 by James Blish.



Episode charactersEdit

Christine ChapelPavel ChekovElaanEvans (Lieutenant)Bill HadleyKhodJames T. KirkKrytonRoger LemliRyan LeslieLeonard McCoyPetriMontgomery ScottSpockHikaru SuluNyota UhuraVinciWatson (engineer)unnamed Elasiansunnamed USS Enterprise (NCC-1701) personnel

Novelization charactersEdit

Christine ChapelPavel ChekovElaanEvans (Lieutenant)KhodJames T. KirkKrytonLeonard McCoyPetriMontgomery ScottSpockHikaru SuluNyota UhuraWatson (engineer)

Starships and vehiclesEdit

USS Enterprise (Constitution-class heavy cruiser) • Khod's warship (D7-class)


ElasTroyius (Tellun system, Milky Way Galaxy)
Referenced only 

Races and culturesEdit


Technology and weaponsEdit

starshipviewscreendilithium crystal converter assembly

Materials and substancesEdit

atmospherebloodgasoxygenElasian tearscolladium trioxidedilithiumalgobariumhydrogenSaurian brandy

States and organizationsEdit

FederationStarfleetElasian Council of NoblesStarfleet CommandKlingon EmpireTroyius Tribunal

Ranks and titlesEdit

captaincommandercommanding officercommunications officerFederation Starfleet ranksFederation Starfleet ranks (2260s)first officerhigh commissionerlieutenant commanderofficerscientistscience officerDohlmanmechanicbureaucrat

Other referencesEdit

anatomyarmbootclothingFederation membersfingerfive-year missiongovernmenthumanoidlanguagelifeformlogicmattermemorynation-stateorbitpantsquadrantraces and culturesrankspacestarstardateStarfleet uniformStarfleet uniform (2260s)technologytitletunicuniformuniverseweaponclass A security • "Bones" • general quarterskilometerspankingsuicideswineVulcan mind meldyellow alert


Related mediaEdit




published order
Previous episode:
Spectre of the Gun
TOS episode produced Next episode:
The Paradise Syndrome
Previous episode:
The Empath
TOS episode aired Next episode:
Whom Gods Destroy
Previous story:
The Deadly Years
Star Trek 7
Next story:
last story
chronological order
Previous Adventure:
Spectre of the Gun
Pocket Next Adventure:
The Paradise Syndrome
Previous Adventure:
Spectre of the Gun
Voyages of the
USS Enterprise (NCC-1701)
(2264 to 2270)
Next Adventure:
The Paradise Syndrome

External linksEdit

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