Qolka

Councillor Qolka was a Klingon male who served in the Klingon High Council as of 2379. That year, Worf had a meeting with the Council regarding the upcoming election for Federation President. Qolka was particularly hostile to Worf and the Federation and came close to accusing Starfleet of being responsible for replacing Emperor Kahless with a hologram.

Some time soon after this, Alexander Rozhenko, acting on behalf of the Federation, met with Qolka in his office with the hopes of convincing him to continue to support the alliance and the Khitomer Accords. Alexander was able to convince Qolka that the Federation had served to strenthen the Klingon Empire for the past sixty years and that the Empire would likely continue benefitting from the alliance. Surpringly, Qolka was convinced and he pledged his support. (TNG novel: A Time for War, A Time for Peace)