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 "".
Halo: The Fall of Reach
The protagonist of "The Fall of Reach" is the Spartan soldier Master Chief. Dr. Catherine Halsey, the creator of the SPARTAN Project, is introduced alongside then-Lieutenant Jacob Keyes. Franklin Mendez is the trainer of the Spartan II and Spartan III programs, teaching them their physical combat skills while an AI named Déjà teaches them military history and strategy. Cortana, Master Chief's AI companion through much of the series, is also present as Dr. Halsey's aide in the lead-up to the Spartans' mission.