Halo is an upcoming American military science fiction television series developed by Kyle Killen and Steven Kane for the streaming service Paramount+, based on the video game franchise of the same name. It is produced by Amblin Television, 343 Industries, Showtime Networks, One Big Picture, and Chapter Eleven, and follows a 26th-century war between the United Nations Space Command and the Covenant, a theocratic-military alliance of several advanced alien races.
Pablo Schreiber and Jen Taylor star as Master Chief Petty Officer John-117 and Cortana, the latter reprising her role from the video game series and are joined by Natascha McElhone, Yerin Ha, Charlie Murphy, Shabana Azmi, Bokeem Woodbine, Kate Kennedy, Natasha Culzac, and Bentley Calu. Development for a Halo television series began in 2015. Killen was hired in June 2018, with the series officially announced with a 10-episode order for Paramount+