Memory Beta, non-canon Star Trek Wiki

A friendly reminder regarding spoilers! At present the expanded Trek universe is in a period of major upheaval with the finale of Picard and the continuations of Discovery, Lower Decks, Prodigy and Strange New Worlds, the advent of new eras in Star Trek Online gaming, as well as other post-56th Anniversary publications such as the new ongoing IDW comic. Therefore, please be courteous to other users who may not be aware of current developments by using the {{spoiler}}, {{spoilers}} or {{majorspoiler}} tags when adding new information from sources less than six months old. Also, please do not include details in the summary bar when editing pages and do not anticipate making additions relating to sources not yet in release. 'Thank You

READ MORE

Memory Beta, non-canon Star Trek Wiki
Register
Advertisement

"Obsession" was the 47th episode of Star Trek: The Original Series.

References[]

Characters[]

Episode characters[]

BardoliChristine ChapelPavel ChekovDikironium cloud creatureStephen GarrovickBill HadleyJames T. KirkRyan LeslieLeonard McCoyRizzoMontgomery ScottSpockSwensonNyota UhuraVinci[1]

Novelization characters[]

BardoliChristine ChapelDikironium cloud creatureDavid GarrovickJames T. KirkLeonard McCoyRizzoMontgomery ScottSpockSwansonNyota Uhura

Starships and vehicles[]

USS Enterprise (Constitution-class heavy cruiser)
Referenced only
USS Farragut (Constitution-class heavy cruiser)

Locations[]

Argus XTycho IV

Races and cultures[]

HumanVulcanDikironium cloud creature

Science and classification[]

anatomylifeformlogicmattermemoryorbitquadrantraces and culturesspacestarstardatetechnologyuniverseweapon

Technology and weapons[]

starshipviewscreen

Materials and substances[]

atmospherebloodgasoxygen

Lifeforms[]

humanoidDikironium cloud creature

States and organizations[]

FederationStarfleet

Ranks and titles[]

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

Other references[]

armbootclothingFederation membersfingerfive-year missiongovernmenthumanoidlanguagenation-statepantsrankStarfleet uniformStarfleet uniform (2260s)titletunicuniform

Appendices[]

Related media[]

  • This story is one week before the events of the beginning of Best Defense where Kirk is still preoccupied by memories of the event and he compares the situation with what happens to Number One in the Book.

Adaptations[]

Video releases[]

Background[]

According to actor Eddie PaskeyMA, Lieutenant Leslie must have been "miraculously" revived in an unseen scene, which explains why he's seen again in future episodes, alive and well. However, no such scene exists in the revised final draft script.

Images[]

Connections[]

Timeline[]

published order
Previous episode:
The Gamesters of Triskelion
TOS episode produced Next episode:
The Immunity Syndrome
Previous episode:
The Deadly Years
TOS episode aired Next episode:
Wolf in the Fold
Previous story:
That Which Survives
Star Trek 9
Blish9
Next story:
The Return of the Archons
chronological order
Previous Adventure:
Beneath the Skin
pages 20-21
Memory Beta Chronology Next Adventure:
Treaty's Law
chapters 1-24
Previous Adventure:
The Gamesters of Triskelion
Pocket Next Adventure:
Treaty's Law
chapters 1-24
Previous Adventure:
The Gamesters of Triskelion
Voyages of the
USS Enterprise (NCC-1701)
(2264 to 2270)
Next Adventure:
The Patrian Transgression


Translations[]
1973
German : Das Ding, translated by Iannis Kumbulis. (Williams)
1974
Turkish : Geçmişteki Korku, translated by Reha Pinar. (Altın Kitaplar)
1979
Italian : L'Ossessione, translated by Amedea Pasinetti. (Arnoldo Mondadori Editore)
1980
Japanese : 執念, translated by Hiroshi Saito. (Hayakawa Bunko)

External links[]

  1. The character Vinci 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.
Advertisement