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What was the name used by Alexander Rozchenko when he came back in time in the 'Next Generation' episode "First Born"?

K'Mtar. Alexander went by the alias of K'Mtar when he came back in time to mentor himself during "First Born". Alexander did this because he did not want to fail his father Worf again, who was killed on the floor of the High Council in a future time line.

What is the name of the Klingon Chancellor who preceded Gowron?

K'Mpec. Chancellor K'Mpec, first seen in the 'Next Generation' episode "Sins of the Father", was later poisoned by Duras in the episode "Reunion".

What is the name of the commanding officer of the Klingon vessel T'Ong?

K'Temoc. During the 'Next Generation' episode "The Emissary", we see K'Temoc on the view screen as Worf and K'Ehylar try to convince the time-displaced Klingon to stand down his vessel.

What is the name of the Klingon emissary who was a Romulan operative that used mind-control procedures on Geordi LaForge?

Kell. During the episode "The Mind's Eye", Kell tries to brainwash Geordi into assassinating Governor Vagh.

What is the name of the High Cleric on Boreth who was responsible for creating a clone of Kahless?

Koroth. Koroth, along with help from his associate Torin, programmed the Kahless clone to think he was actually the real "Kahless the Unforgettable". This was detailed in the 'Next Generation' episode "Rightful Heir".

What is the name of the only surviving Klingon officer from the Bird-of-Prey seen in "Star Trek III: The Search for Spock"?

Maltz. Maltz was the character played by John Larroquette who was captured by Kirk and company when they boarded the Bird-of-Prey.

What is the name assumed by Kurn after his memory engrams were erased?

Rodek. In the 'Deep Space Nine' episode "Sons of Mogh", Worf has Kurn's memory erased and gives him the identity of Rodek, son of Noggra. He did this in order to allow his brother to live his life as a Klingon, without the dishonor from the house of Mogh. Kurn was first introduced in the 'Next Generation' episode "Sins of the Father".

What is the name of Chancellor's Military Advisor from "Star Trek VI: The Undiscovered Country"?

Kerla. Chancellor Gorkon introduced Brigadier Kerla as his Military Advisor when the Klingons beamed over to the Enterprise. General Chang was Gorkon's Chief of Staff.

What is the name of the Klingon agent who was negotiating with the Capellans against James Kirk?

Kras. In "Friday's Child", Kras was trying to keep the Kirk and the Federation from gaining mining rights on Capella.

What is the name of the First Officer from the Bird-of-Prey chasing the Enterprise in "Star Trek V: The Final Frontier"?

Vixis. The character of Vixis, played by Spice Williams, was first officer on the Bird-of-Prey under Captain Klaa.