Halo

Pablo Schreiber

Master Chief, Spartan-117 / John-117

Natascha McElhone

Dr. Catherine Halsey

Joseph Morgan

James Ackerson

Shabana Azmi

Margaret Parangosky

Christina Bennington

Cortana

Natasha Culzac

Riz-028

Olive Gray

Dr. Miranda Keyes

Yerin Ha

Kwan Ha

Bentley Kalu

Vannak-134

Kate Kennedy

Kai-125

Charlie Murphy

Makee

Fiona O'Shaughnessy

Laera

Cristina Rodlo

Corporal Talia Perez

Danny Sapani

Jacob Keyes

Jen Taylor

Cortana (voice)

Viktor Åkerblom

Arbiter Var 'Gatanai

Tylan Bailey

Kessler

Bokeem Woodbine

Soren-066