Xyon of Calhoun

Xyon of Calhoun was the son of M'k'n'zy and Katrine of Calhoun on the world of Xenex in the year 2354. Katrine was a widow who invoke an ancient tradition that required the leader of a community to provide an heir to a slain soldiers family.

Xyon left Xenex at an early age and managed to "liberate" the sentient computer ship Lyla from her "tormentors" at the Daystrom Institute.

Xyon possesed low-level psionic ability and travelled the galaxy righting wrongs. In 2375, he rescued the Thallonian princess Kallinda from Zoran Si Verdin, the Dogs of War and the Redeemers.

Soon after, he met his father, now calling himself Mackenzie Calhoun, and was Captain of the USS Excalibur (NCC-26517).

He was briefly romantically involved with Kallinda before faking his own death after saving the Excalibur from the Black Mass. (Star Trek: New Frontier novels The Quiet Place, Dark Allies.)

In 2379, after finding out about Kallinda's engagment to Tiraud, Xyon came out of hiding and kidnapped Kallinda at her wedding. Kallinda didn't react the way Xyon hoped and Xyon had agreed to return her to New Thallon, when Kallinda was kidnapped by the extra-dimensional race called the Teuthis. The Teuthis hoped to incite a civil war in the New Thallonian Protectorate.

Xyon was one of the only people who realized that the shape-shifting Teuthis that replaced Kallinda was not, in fact, really her.

Xyon was onboard the USS Excalibur (NCC-26517-A) when that vessel was swept into the gelatonous realm of the Bolgar and the Teuthis, and was part of the team that retrieved the real kallinda from the surface of Priatia. (NF: novels, After The Fall, Missing In Action)