Korrd

"When they put me out to pasture I hope I fare better than Korrd."
 * -James T. Kirk, 2287

General Korrd was a well-known Klingon officer, whose military strategies were required reading at Starfleet Academy when James T. Kirk was a cadet.

History
By 2287, Korrd had fallen out of favor with the Klingon High Command, and was relegated to a position as a representative of his people on Nimbus III. By this point, Korrd had become disenfranchised with his career, drinking heavily and adopting an apathetic attitude. When Caithlin Dar, the Romulan representative to Nimbus III, arrived to greet Korrd and St. John Talbot, the Federation representative, Korrd only responded with a loud belch.

When the renegade Vulcan Sybok arrived on Nimbus III, capturing Paradise City with the support of his "Galactic Army of Light," he confronted the three representatives and mentally manipulated them into joining his cause of locating the mythical planet of Sha Ka Ree. After the group had captured the USS Enterprise (NCC-1701-A) and arrived at Sha Ka Ree, Captain Spock convinced Korrd to overrule the command of Klaa, a renegade Klingon on a mission to destroy the Enterprise in a quest for glory. Taking command of Klaa's Bird-of-Prey, he instituted Spock as the ship's temporary gunner, allowing him to destroy a malevolent alien entity which was attempting to kill Captain Kirk on the planet's surface. Korrd subsequently forced Klaa to apologize to Kirk for his unauthorized actions, and even shared a drink of scotch whisky with Captain Montgomery Scott upon the conclusion of the crisis. 

Background information
Korrd was played by actor Charles Cooper.

The spelling of Korrd's name as "Koord" can be seen both the Star Trek Encyclopedia, and in fine print of Korrd's bioscreen, whereas the larger print reads "Korrd." The PC game adaptation of the film also spells his name as "Korrd".

Apocrypha
The novelization of The Final Frontier elaborates on his backstory, saying that Korrd became a proponent of the cessation of hostilities after all his children fell in combat, and only managed to avoid death because his brother-in-law was the KDF's second-in-command.

Korrd is also written into the novelization of, in which he does not appear on screen. He is one of Chancellor Gorkon's advisors, advising rapprochement with the Federation, in contrast to the hot-headed advice of Brigadier Kerla. He is present in Gorkon's chamber aboard Kronos One when Starfleet crewman Burke and Samno enter and assassinate the Chancellor, and is severely wounded. As of his last mention in the novel, he is still in critical condition in the infirmary.