Luci Christian

Female Soldier ("Prototype") / Kelly ("The Package")

David Wald

Master Chief

Emily Neves

Spartan ("The Babysitter")

Shelley Calene-Black

Cortana / Dr. Halsey

Jessie James Grelle

Haka (segment "The Duel")

Brittney Karbowski

Sister (segment "Odd One Out")

Greg Ayres

Kid A (segment "Odd One Out")

David Anthony Matranga

Sarge (segment "Prototype") / Joseph (segment "Homecoming")

Akio Ōtsuka

ONI Commander (segment "Prototype")

Tomokazu Seki

Brother (segment "Odd One Out")

Kazuhiko Inoue

The Prophet (segment "The Duel")

Atsuko Tanaka

Dr. Halsey (segment "The Package")

Chris Patton

Big Brother (segment "Odd One Out")

John Swasey

Captain (segment "Odd One Out")

John Swasey

Sergeant Hauser (segment "Homecoming")

Kenta Miyake

Sergeant Hauser (segment "Homecoming")

Keiji Fujiwara

Sarge (segment "Prototype")

Chris Ayres

Solider (segment "Prototype")