Kbrex

Kbrex was a Klingon who lived in the 23rd century. In 2273 he was the first officer of the battle cruiser IKS Ghargh. Kbrex was the older brother of Kral, who was promoted over him to command of the Ghargh, causing Kbrex much anger and envy even though Kral requested him as his first officer.

In 2273 the Ghargh visited the planet Cragon V in an attempt to bring it into the Klingon Empire. In the absence of Weyland, the planet's ruler, Kral, Kbrex and their crew began teaching the people of Cragon V how to fight. Kbrex set traps in the forest surrounding Weyland's castle, marking nearby trees with Klingon symbols.

Shortly after Weyland's return, the USS Enterprise (NCC-1701) also visited the planet. Weyland was furious with the Klingons for what they had done to his people. After an audience with Weyland, a verbal confrontation between the Klingons and the Starfleet men outside Weyland's castle turned into a battle when Kbrex goaded Kral into firing at Captain James T. Kirk. During the ensuing fight, Kbrex threw a plasma grenade that killed a native child and Lieutenant Garrovick of the Enterprise. Weyland punished both crews by depriving them of ship control, causing their orbits to begin decaying.

Kbrex plotted to remove Kral from command. Vladra, a member of the Ghargh's science department, had developed romantic feelings for Kral. When she went to his quarters to warn him of Kbrex's plans, Kbrex was already there and attacked her, hoping to make her his mate. Kral arrived in time to rescue her, but Kbrex defeated him in combat, put Kral and Vladra in the brig and took command. As the ship's orbit continued to decay, Kbrex ordered Kral and Vladra ejected from an airlock.

Kbrex was enraged to learn that Kral and Vladra had been beamed aboard the Enterprise, and even angrier when Kral and Kirk departed the starship in a shuttlecraft and headed for the planet. He sent Weyland a message offering to foil Kral's supposed plan to harm the planet's people, and Weyland allowed him to beam down. On the planet he confronted Kral and Kirk, but was killed by one of his own traps. Kral uttered the Klingon death scream over his brother, who had died as a warrior.