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John-117

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"WE'VE GOT A NEW CONTACT, UNKNOWN CLASSIFICATION!"
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Large version of the Halo Infinite cover art without logo.
John-117
GEN3
John-117 wielding an MA40 assault rifle in Halo Infinite. Image from Canon Fodder #117. Slightly cropped so that John-117 is centered in the image (looks nicer).
GEN2
A render of John-117.
Mark VI
Full-body CGI render of Master Chief from Halo 2: Anniversary's Blur Studio cutscenes (cropped from the originalMedia:H2A MC FullBody.jpg).
Mark V
Render of John-117
Mark IV
Official Image of Master Chief's armor from Halo 4: Forward Unto Dawn
Young Adult
Halo: The Fall of Reach - The Animated Series screenshot
Biographical information

Homeworld:

Eridanus II[1]

Born:

March 7, 2511[2][1]

Personal details

Species:

Human[1]

Gender:

Male[1]

Height:

  • 208.3 centimeters (6 ft 10.0 in)[3]
  • 218 centimeters (7 ft 2 in) (with Mjolnir armor)[1]

Weight:

  • 130.0 kilograms (286.6 lb)[1]
  • 179.0 kilograms (394.6 lb) (with Mjolnir undersuit)[3]
  • 451.3 kilograms (994.9 lb) (with Mark V Mjolnir)[3]

Hair color:

Brown[4]

Eye color:

Blue[4]

Political and military information

Affiliation:

Rank:

Master Chief Petty Officer[1]

Service number:

S-117[1]

 

"This child could be more useful to the UNSC than a fleet of destroyers, a thousand Lieutenants -- or even me. In the end, one child could be the difference between peace and an unwinnable war."
— Dr. Catherine Halsey, referring to John-117.[5]

Master Chief Petty Officer John-117, also known simply by his rank as the "Master Chief" or (as is common in military culture) simply as the "Chief", is a Spartan-II supersoldier of the UNSC Navy's Special Weapons division. He served as one of the most important figures of the Human-Covenant War. After over thirty years of active duty, he is one of the most decorated war veterans of the United Nations Space Command.