Kronos One personnel

The following is a list of unnamed Klingons who served aboard the IKS Kronos One in 2293.

Chang's assistant

A Klingon soldier

This Klingon soldier served as General Chang's assistant during his time aboard the IKS Kronos One. He restored the anti-gravity at Chang's orders. (Star Trek VI: The Undiscovered Country)

This Klingon was played by stunt performer Don Ruffin.

Crewmembers in corridor

The first two Klingon officers went through a corridor aboard the IKS Kronos One when the anti-gravity went off. Shortly thereafter the two assassins, later identified as USS Enterprise-A yeomen Burke and Samno, fired their phasers and shot them. One of them was later found dead in a corridor when Captain Kirk and Doctor McCoy went to the stateroom of Gorkon.

The third Klingon was lying dead in a corridor when Captain Kirk and Doctor McCoy were brought to the stateroom of Chancellor Gorkon.

The fourth Klingon was running through a corridor when the photon torpedo exploded in this section.

The other Klingons were running through the corridors and carrying away the dead and wounded while Captain Kirk and Doctor McCoy came aboard the Klingon starship. (Star Trek VI: The Undiscovered Country)

All Klingons were played by stunt performers and background actors who received no credit for their work.
One of them was played by Robert Bruce whose belt was sold off on the It's A Wrap! sale and auction on eBay. [1]

First general

File:First Klingon general 2293.jpg

A Klingon general

This Klingon general was an adviser to Azetbur following her ascension to the position of Klingon chancellor following the assassination of her father, Chancellor Gorkon. The general blamed the Federation for Gorkon's death and urged Azetbur to "attack or be slaves in their world!". Azetbur wisely chose not to follow this course of action. (Star Trek VI: The Undiscovered Country)

This Klingon general was played by Jim Boeke.

General at dinner

Klingon general in transporter room — A Klingon general

This Klingon general accompanied Chancellor Gorkon, Azetbur, Chang, Stex, and Kerla aboard the Enterprise-A after Captain James T. Kirk invited Gorkon and his staff for a dinner aboard the ship. He was the last one who went off the transporter platform and had a close look at Doctor McCoy. During the following dinner he sat between Chang and Stex and was asked by Uhura if he was also fond of Shakespeare. (Star Trek VI: The Undiscovered Country)

This Klingon general was portrayed by background actor with the last name Farrel who received no credit for this part.
He was identified as general by the call sheet of the shooting day, the 5 June 1991, and by Uhura in dialogue.

Gorkon's soldier

This Klingon officer served as Chancellor Gorkon's personal soldier. He was present in Gorkon's stateroom when the anti-gravity failed after the Kronos One was hit by photon torpedoes. When the two assassins entered the room he was killed by one of them who fired a phaser onto him. (Star Trek VI: The Undiscovered Country)

This Klingon soldier was portrayed by stunt performer Gary Pike.

Kerla's soldiers

These two Klingon soldiers were putting the dead transporter officer on a barrow when Captain Kirk and Doctor McCoy materialized in the transporter room. At the orders of Brigadier Kerla they've guarded Kirk and McCoy through the corridors to the stateroom of chancellor Gorkon where they grabbed their arms and held them while Chang explained what happened. When Doctor McCoy tried to save Gorkon's life they helped to put Gorkon on the table. Following the death of Gorkon they arrested Kirk and McCoy, put them handcuffs on and brought them into the ship's prison.

The second Klingon soldier was later present during Azetbur's speech at the Khitomer conference and protected her during the assassination try on the Federation president. (Star Trek VI: The Undiscovered Country)

Both Klingons were played by background performers who received no credit for their appearance.

Second general

File:Second Klingon general 2293.jpg

A Klingon general

This Klingon general was also an adviser to Azetbur and followed the advices made by Kerla and another general after Azetbur contacted the President of the Federation. He was also, however, a member of the Khitomer conspiracy and collaborated with General Chang, among others, to sabotage the tentative peace between the Federation and the Klingon Empire. He later served under Chang aboard Chang's experimental Klingon Bird-of-Prey, which could fire weapons while cloaked. He was present when Chang engaged the Enterprise-A and USS Excelsior over Khitomer and was killed when the Bird-of-Prey was destroyed. (Star Trek VI: The Undiscovered Country)

This Klingon general was played by Matthias Hues.
In the novelization of Star Trek VI, his name was given as Grokh.

Transporter officer

This Klingon officer served as transporter operator aboard the IKS Kronos One in 2293. He was drifting in the room after the anti-gravity system was damaged. He witnessed the two assassins beaming aboard and was shot by one of them. (Star Trek VI: The Undiscovered Country)

This Klingon was portrayed by stunt performer Scott Leva.