Season Regulars 12

1. 

   Pablo Schreiber

   Master Chief, Spartan-117 / John-117

2. 

   Natascha McElhone

   Dr. Catherine Halsey

3. 

   Shabana Azmi

   Margaret Parangosky

4. 

   Natasha Culzac

   Riz-028

5. 

   Olive Gray

   Dr. Miranda Keyes

6. 

   Yerin Ha

   Kwan Ha

7. 

   Bentley Kalu

   Vannak-134

8. 

   Kate Kennedy

   Kai-125

9. 

   Charlie Murphy

   Makee

10. 

    Danny Sapani

    Jacob Keyes

11. 

    Jen Taylor

    Cortana (voice)

12. 

    Bokeem Woodbine

    Soren-066

Gastdarsteller 13

1. 

   Sebastián Viveros

   Sergeant Mendez

2. 

   Sarah Ridgeway

   John's Mother

3. Khash-Erdene Ganbold

   Jong Sook

4. Ali Khan

   Attu

5. 

   Casper Knopf

   Young John

6. 

   Angie Cepeda

   Violetta Franco

7. 

   Ryan McParland

   Dr. Adun Saly

8. 

   Burn Gorman

   Vinsher Grath

9. Jaram Lee

   Madrigal Elder

10. 

    Duncan Pow

    John's Father

11. 

    Scott Karim

    Fazekas

12. 

    Nila Aalia

    Agatha Terne

13. 

    Yuna Shin

    Soojin Ha

Crew 29