Who is the protagonist of the Halo series?
Master Chief
John-117
Master Chief
John-117
Master Chief
John-117
Master Chief
John-117
Cortana
Master Chief
John-117
Master Chief
Cortana
John-117
Master Chief
Hal Jordan
a Spartan
John-117
Cortana
Master Chief
Hal Jordan
Spartan John-117
a Spartan
Master Chief
John-117
Hal Jordan
Cortana
Master Chief
a Spartan
Spartan Locke
John-117
Hal Jordan
Spartan John-117
Cortana
Master Chief
Arbiter
Hal Jordan
John-117
a Spartan
Spartan-II
Master Chief
Hal Jordan
Arbiter
Spartan Locke
John-117
a Spartan
Spartan John-117
Cortana
Master Chief
ODST
Noble Six
Hal Jordan
Arbiter
Master Chief & Master Chief
John-117
Spartan-II
John-117.
a Spartan
The Master Chief
Halo
Ivan O'Brien
Master Chief
Noble Six
Hal Jordan
Cortana
Arbiter
Spartan Locke
ODST
John-117
Master Chief & Master Chief
Halo
The Master Chief
Master Chief
John-117.
a Spartan
John-117, Master Chief
Noble Six
Hal Jordan
Arbiter
Cortana
John-117
Ivan O'Brien
Halo
Spartan-II
Ivan O'Neill
Master Chief
Noble Team
The Master Chief
Noble Six
Ivan Vanko
Hal Jordan
John-117, Halo
a Spartan
ODST
John-117.
Avery Johnson
Commander Keyes
Arbiter
Halo
Master Chief & Master Chief
John-117
Cortana
Captain John-117
Master Chief
Noble Team
Noble Six
Hal Jordan
The Master Chief
Ivan O'Brien
a Spartan
John-117, Master Chief
John-117.
Ivan O'Donnell
Avery Johnson
Halo
Arbiter
Ivan O'Neill
Ivan Vanko
Master Chief
ODST
Noble Team
John-117's
Ivan Osiris
John-117
Noble Six
Cortana
Hal Jordan
The Master Chief
Commander O'Brien
Commander Keyes
John-117, Halo
Ivan O'Conner
Ivan O'Connor
a Spartan
Halo
John-117.
Avery Johnson
Spartan-III
Ivan O'Connell
Master Chief
Arbiter
Noble Team
Master Chief & Master Chief
Noble Six
John-117
Hal Jordan
Ivan O'Neill
The Master Chief
ODST
The Master Chief of Halo
Cortana
Ivan O'Donnell
ODST.
Ivan Osiris
Halo
Ivan Vanko
Master Chief
Noble Team
Avery Johnson
John-117's
Hal Jordan Hal Jordan
a Spartan
John-117.
Arbiter
Noble Six
Hal Jordan
John-117, Master Chief
John-117
Issac Johnson
Ivan O'Conner
Ishtar
Ivan O'Neill
Ivan O'Connor
The Master Chief of Halo
Cortana
Halo
John-117's son
Ivan O'Connell
John-117, Halo
Master Chief
Noble Team
Noble Six
Avery Johnson
a Marine
Hal Jordan
Ivan O'Donnell
Arbiter
Ivan Osiris
John-117.
Osiris
a Spartan
John-117
Ivan Vanko
ODST
Ishtar
Halo
Hal Jordan Hal Jordan
Issac Johnson
Ivan O'Neill
Issac
Ivan O'Reilly