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Official Site: Blizzard Entertainment

Major and recurring characters from the military science fiction series StarCraft are listed below, organised by respective species and most commonly affiliated faction within the fictional universe. The story of the StarCraft series revolves around interstellar affairs in a distant sector of the galaxy, where three species are vying for supremacy: the Terrans, a highly factionalised future version of humanity; the Protoss, a theocratic race of vast psionic ability; and the Zerg, an insectoid species commanded by a hive mind persona. The latter two of these species were genetically engineered by the Xel'Naga, a fourth species believed extinct. The series was begun with Blizzard Entertainment's 1998 video game StarCraft, and has been expanded with sequels Insurrection, Retribution, Brood War, Ghost and Wings of Liberty. The franchise has been further extended with a series of novels, graphic novels and other works.

The characters and story of the StarCraft series were created by Chris Metzen and James Phinney. Despite the series' success globally, particularly in South Korea, Blizzard Entertainment has not made any major comments regarding the development of the characters and the storyline of the StarCraft series.

However, interviews with the two of the voice actors have given a glimpse into small parts of the development process. An interview with Robert Clotworthy, the voice of in all released StarCraft games to date, has revealed that for the most part the voicing for the characters was done over only a few days in sessions of up to four hours, a fact mirrored in a similar interview with actress, Glynnis Talken Campbell. Clotworthy also stated how the concept art for the game—usually used for the visual development of characters and locales in games—was used by him in order to develop the personality of his character.

Visually, most of the characters and units in the games were developed from artwork by Metzen and Samwise Didier, although at least two other artists—Glenn Rane and Peter Lee—have developed concept art for the upcoming StarCraft II. It is also implied by some of the authors of the novels that the development of the characters in their books was influenced by Metzen as well as Andy Chambers and Evelyn Fredericksen. This is particularly notable for characters later appearing in the games, such as .

Arcturus Mengsk has not been a contender in any CBUB matches.