Karass

Praetor Karass was a protoss high templar.

Biography
On the eve of the Second Great War, Karass and his troops journeyed to Ulaan in pursuit of Infested Kerrigan. There he met the Prelate Zeratul; the dark templar was seeking information on the hybrids. The praetor put himself at Zeratul's disposal and the pair broke through zerg patrols and found the prophecy Zeratul and Kerrigan sought.

Kerrigan, leading a large swarm, attacked the protoss. Karass (assuming he didn't die during the assault) instructed Zeratul to escape with the information; the praetor and his troops proceeded to buy Zeratul time with their lives. The dark templar reluctantly withdrew aboard Void Seeker, and swore Karass' sacrifice would not be in vain.

Trivia
In Kurt Vonnegut's novel, Cat's Cradle, a "karass" is a group of two or more people bound by fate to achieve a common goal.

Despite the short appearance Karass makes in the game, his portrait and sounds when clicked are both unique.