Kyle Killen Creator, Executive Producer Pablo Schreiber Master Chief Petty Officer John-117 Actor, Producer Shabana Azmi Admiral Margaret Parangosky Actor Natasha Culzac Spartan Riz-028 Actor Olive Gray Dr. Miranda Keyes Actor Yerin Ha Kwan Ha Actor Bentley Kalu Spartan Vannak-134 Actor Natascha McElhone Dr. Catherine Halsey Actor, Producer Jen Taylor Cortana Voice Bokeem Woodbine Soren-066 Actor Kate Kennedy Spartan Kai-125 Actor Charlie Murphy Makee Actor Danny Sapani Captain Jacob Keyes Actor Joseph Morgan James Ackerson Actor Cristina Rodlo Talia Perez Actor David Wiener Executive Producer Kiki Wolfkill Executive Producer Steven Spielberg Executive Producer Bonnie Ross Executive Producer Frank O'Connor Executive Producer Steven Kane Executive Producer Darryl Frank Executive Producer Justin Falvey Executive Producer Otto Bathurst Executive Producer Toby Leslie Executive Producer Scott Pennington Executive Producer