Master Chief (Halo)
MCPON John-117, or "Master Chief", is a fictional character and the protagonist of the "Halo" fictional universe created by Bungie. Master Chief is a playable character in the series of science fiction first-person shooter video games "", "Halo 2", "Halo 3", "Halo 4", and "". Outside video games, the character appears in books and graphic novels—"", "", "", and ""—and has cameos in other "Halo" media, including "", "", "The Halo Graphic Novel", "Halo Legends" and "".
Characters of Halo
Gravemind (voiced by Dee Bradley Baker) is one of the primary antagonists in the Halo series. The Gravemind is a large, sentient creature of Flood origin, created by the parasite to serve as its central intelligence once a critical biomass has been achieved. It was introduced during the events of "Halo 2", where the creature saves both the Master Chief and Arbiter from their deaths, bringing the two face to face in the bowels of Delta Halo. Gravemind reveals to the Arbiter that the "sacred rings" are actually weapons of last resort; a fact the Master Chief confirms. In order to stop Halo from being fired, Gravemind teleports the Master Chief and Arbiter to separate locations, but also uses them as a distraction; Gravemind infests the human ship "In Amber Clad", and uses it to invade the Covenant city of "High Charity". Capturing Cortana, Gravemind brings "High Charity" to the Ark in an effort to stop the High Prophet of Truth from activating the Halo network. Although the Master Chief destroys "High Charity", Gravemind survives the blast and attempts to rebuild itself on the incomplete Halo. When Halo is activated, Gravemind accepts his fate, but insists that the activation of the ring will only slow, not stop, the Flood. In "Halo Wars 2: Awakening the Nightmare", the Gravemind's warning is validated when the Banished inadvertently release a number of surviving Flood forms from "High Charity"'s wreckage. It is also mentioned in the game's menu that while the Gravemind's "most recent physical avatar" was destroyed by the Master Chief, it is "only a matter of time before it rises again".