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 Year Five, the Coda miniseries and the continuations of Discovery, Picard and Lower Decks; and the premieres of Prodigy and Strange New Worlds, the advent of new eras in Star Trek Online gaming, as well as other post-55th Anniversary publications. 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


Memory Beta, non-canon Star Trek Wiki

The Excalbians were a civilization that came from the planet Excalbia.


They were very powerful, and rather curious, silicon-based lifeforms. (TOS episode: "The Savage Curtain") The natives of Excalbia were a carbon cycle race of beings with a body chemistry that was based on calcium carbonate. Little was known about their society or their capabilities except that they were quite able to alter their planet to create a range of environments in order to suit their research experiments. Their physical forms were apparently composed of a "living rock" with no apparent internal organs as well as a very high body temperature. They were capable of drawing minerals from within themselves in order to form quartz lenses for seeing or to use them to create mineral claws for crushing purposes. There was no apparent limit to the variety of forms they could take with their external configuration. (ST reference: The Worlds of the Federation)

To most species, Excalbians appeared indistinguishable from Atharites, however Ogurans seem to be able to tell them apart. (SA comic: "Liberty")



In the mid 23rd century, the Excalbians were quite intrigued with the Human concepts of good and evil which led to them performing an experiment in 2269 to examine the notion further. This led to them staging a contest between the two ideas of thought and they abducted Starfleet Captain James T. Kirk and Commander Spock whereupon they created constructs of galactic historical figures. These consisted of recreations of Abraham Lincoln of Earth and Surak of Vulcan who were representations of "good". They were tasked with fighting Kahless the Unforgettable of Qo'noS, Genghis Khan along with Colonel Phillip Green of Earth along with Doctor Zora of Tiburon who represented forces aligned with "evil". (TOS episode: "The Savage Curtain")

Excalbian DC Comics.jpg

As a result of the USS Enterprise's encounter with the Excalbians, the planet of Excalbia was placed off limits by the United Federation of Planets. (ST reference: The Worlds of the Federation) By 2285, the Excalbians once again conducted their experiments into good and evil which resulted in them imprisoning the Organian race in order to prevent them from stopping a war between the United Federation of Planets and the Klingon Empire. After arriving on Organia, Captain Kirk convinced the Excalbians to get personally involved in the experiment in order to understand it better. This led to the Excalbians battling against the Organians and the disappearance of both races from the material plane. As a result of this encounter, the Organian Peace Treaty ended due to the Organians being not present to enforce it. (TOS comics: "Errand of War!", "Deadly Allies!")

This would contradict novels such as The Buried Age which showed the Organians still present on their home world.

Template image.
This article is a stub relating to an intelligent species or civilization. You can help our database by expanding on it.


  • Yarnek



External Link