A noble High Templar, Tassadar has walked the Protoss planet of Aiur for centuries as both warrior and philosopher. Shortly before discovering Zerg activity in the Koprulu sector, Tassadar observed the movements of the Terran species; now, he wonders if they might have greater potential than to be unwitting victims of the Zerg or casualties of the Protoss armada.

Tassadar’s foremost duty is to the Conclave that rules his homeworld, but his compassion for lesser races may brand him a liability to the very people he has sworn to serve.

Sarah Kerrigan came of age in the Confederacy’s top-secret Ghost program: a government initiative that identified—and “recruited”—children with high psionic potential. After graduating from the cutthroat academy, she earned her canister rifle and light-refracting stealth suit, and served the Confederacy with distinction. But, when an anti-Confederate resistance group struck the facility where she’d been subject to torturous psionic experiments, Kerrigan defected.

Sarah has had many masters over her life. Her dedication and competence are clear, but her personal loyalties are hazy. It remains to be seen if her fellow soldiers can be truly loyal to her in turn.

As the singular “brain” of the Zerg, the titanic Overmind expanded and evolved its alien horde for centuries before humanity arrived in the Koprulu sector.

Though it exerts utter dominion over the single-minded Zerg, in recent years the Overmind has increasingly come to rely on its Cerebrates—communication specialists possessed of rudimentary personalities—to direct its many appendages. The emergence of these distinct beings amongst the unity of the hive hints at a broader vision for the future of the Swarm, and perhaps Terran and Protoss as well.