Pablo Schreiber

as Fay Darrow

as Jean-Paul Valley / Azrael (voice)

as Jason(8 eps)

as Jean-Paul Valley / Azrael (voice)

as Lieutenant Savick

as Jean-Paul Valley / Azrael (voice)

as Richard Jones(6 eps)

as Hank 'Dash' Dashnaw(1 ep)

as Allan Gore(5 eps)

as Master Chief, Spartan-117 / John-117(17 eps)

as Dr. Labarthe

as Damien Shea

as Wayland

as Neal Logiudice(8 eps)

as Ezekiel

as Jim Lovell

as Ben

as Bloom

as Ray Merrimen

as Dude

as Self(1 ep)

as Mad Sweeney(11 eps)

as Wyatt Rivers

as Conrad Stevens

as Kris 'Tanto' Paronto

as Zeke Tilson(10 eps)

as Bryan Macy

as Staff Sergeant Donovan

as Sean Neary

as Christian Valentino

as Self(1 ep)

as Covert Becker

as Virgil(9 eps)

as George 'Pornstache' Mendez(19 eps)

as Lieutenant Alec Chambers

as Luke Aaronson(1 ep)

as Anton Little Creek(16 eps)

as Tommy Clay(1 ep)

as Charlie

as Johnny Leary(13 eps)

as Ricky Falcone

as JB Bellmiere(1 ep)

as Gregory Mars(1 ep)

as Cochius

as Turner

as Kim Trent(1 ep)

as David

as Charlie Torrelson

as Ben

as Mattingley

as Brooster

as Mattingley(1 ep)

as Self

as Tim(1 ep)

as Jason Konkey(3 eps)

as Sandy Manetti

as Demetri Ravitch(8 eps)

as Ricky Falcone(1 ep)

as Stecyk

as Kaz Malek

as Tal Feigenbaum(2 eps)

as Jeremy Kiernan(1 ep)

as PFC Eddie Ingram

as Hank Spruill

as Self - Guest(1 ep)

as Brent

as Nick Sobotka(13 eps)

as Ed Lang(1 ep)

as TJ Hawkins(1 ep)

as Todd

as Don Kozlowski(1 ep)

as William Lewis(8 eps)

as Self - Presenter(1 ep)

as Sean Hauser(1 ep)

as Kevin Boatman(1 ep)

as Hank Spruill(1 ep)