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Tholian Queen.png
The Tholian Queen in 2268.

NPC Species
Alpha Quadrant
Planet of Origin:
Tholian Assembly

Tholians are a non-player race from the planet Tholia, capital of the Tholian Assembly. They are known to be extremely xenophobic, rarely leaving their core territory.


Tholians are mostly made of a crystalline material. Their biology requires high temperatures around 480 Kelvin (207 °C, 404 °F) in order to keep their hard mineral carapaces sufficiently soft. Although they could tolerate lower temperatures for a brief period of time, Tholians are killed by sustained insufficient heat as their carapace would begin to freeze and crack below ca. 380 Kelvin.

Tholians are hermaphroditic, meaning they possess both male and female characteristics.

Because of their crystalline structure, Tholians are also naturally able to emit various forms of radiation, which - in addition to using it as a weapon - they could modulate in order to communicate over short distances.

There are also a number of biological features shared by the Tholians and the Crystalline Entity.

Other Information[]

See Tholian Assembly


See List of Tholian NPCs

Duty officers[]

See List of Tholian duty officers

External links[]

v · d · e
Tholian Assembly
Faction Tholian.png
Details Tholian AssemblyTholianTholia • Nukara Prime • Azure Nebula • Interphasic rift
Ground Forces Tholian Trapper • Tholian Ensign • Tholian Lieutenant • Tholian Commander • Tholian Captain
Starships Tholian Widow • Tholian Mesh Weaver • Tholian Orb Weaver (Mob) • Tholian Recluse • Tholian Tarantula
NPCs Inmate 91856 • Tholian Project Leader • Tholian Queen
NPC starships Azar • Ikukube • Iskel • Ketus • Lelkene • Loskene • Naskeel • Presa Gran • Saphene • Seldspar • Tholian Flagship • Tik'r • Zagristi • Zlo'Pauk