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"The Tholian Web" was the 64th episode of Star Trek: The Original Series.


investigating the derelict spaceship Defiant Captain Kirk is missing and presumed dead! Likewise the spaceship Enterprise is in danger of being trapped in a alien energy space web!



Episode characters

Thomas BlairClifford Brent[1]Christine ChapelPavel ChekovBill HadleyJames T. KirkRoger LemliLoskeneLeonard McCoyO'NeilMontgomery ScottSpockHikaru SuluNyota UhuraUSS Enterprise computer

Novelization characters

Thomas BlairPavel ChekovJames T. KirkLoskeneLeonard McCoyMontgomery ScottSpockHikaru SuluNyota Uhura
Referenced only

Starships and vehicles

USS Enterprise (Constitution-class) • USS Defiant (Constitution-class) • Tholia One


Races and cultures


States and organizations

StarfleetTholian AssemblyUnited Federation of Planets

Other references

interphaseTholian webtheragen


Related media

The Tholians and the Defiant have appeared many times throughout Star Trek since their introduction in The Tholian Web:

Depicts Earth's first contact with the Tholians.
After passing through the interphase the USS Defiant fell into the hands of the Mirror Universe Tholians a hundred years in the past. In a Mirror, Darkly shows the fate of the Defiant and has the Tholians use their web once more.
The Tholians, or at least their subject race the Chakuun appear in Early Voyages and an ongoing conflict with the Tholian Assembly is frequently referenced.
The first retrieval of the Defiant, in 2288. The interphase duplicated the ship at this point, leaving one still to be rescued in 2376.
The Tholians, the Defiant and the interphase all appear in The Sundered, this time facing off against Captain Sulu of the USS Excelsior.
Interphase see the crew of the USS da Vinci retrieving the Defiant from the interphase.




published order
Previous episode:
The Empath
TOS episode produced Next episode:
For the World is Hollow and I Have Touched the Sky
Previous episode:
For the World is Hollow and I Have Touched the Sky
TOS episode aired Next episode:
Plato's Stepchildren
Previous story:
Whom Gods Destroy
Star Trek 5
Next story:
Let That Be Your Last Battlefield
chronological order
Previous Adventure:
Pocket Next Adventure:
The Sundered (Chapter 24)
Previous Adventure:
Voyages of the
USS Enterprise (NCC-1701)
(2264 to 2270)
Next Adventure:
Windows on a Lost World

External links

  1. 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.