- For other uses, see Caster.
By the year 2367, Caster had sent out a number of probes throughout the galaxy in an attempt to explore space and make contact with other beings. That year, one such probe was discovered by the Federation starship USS Enterprise-D near the Argus Array. This probe hyper-stimulated the brain of one of Enterprise's engineers, Starfleet Lieutenant Reginald Barclay, exponentially increasing his intelligence and planting an irresistible command to bring the ship to the Cytherian homeworld in his mind. When that was accomplished, Caster was the one who made official first contact with the crew of the Enterprise. (TNG episode: "The Nth Degree")
By 2385, to further his goal of exploration, he had constructed the spacecraft that eventually became known to members of the Khitomer Accords and the Typhon Pact as the Far Embassy. However, his plans were foiled by Proctor, another Cytherian, who then used the ship to compel representatives of both the Accords and the Pact into attacking multiple communications arrays and subspace telescopes in the region in a bid to first sow panic and then fear of the Cytherians, in order to discourage the Alpha Quadrant powers from seeking any further contact with the Cytherians.
In the end, though, Proctor's plans were thwarted by the crews of the USS Enterprise-E and the USS Aventine and Caster was able to reassert control. Rear Admiral William T. Riker, one of the original eight representatives, then mediated between the two Cytherians and promised them that a team of Federation specialists would be sent to continue contact with them in the future. (TNG novel: Takedown)