This article is about the character. For the Halo 3 campaign level, see Sierra 117. Master Chief Petty Officer John-117, better known to the public as the Master 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.
https://www.halopedia.org/John-117
Master Chief was born in year 2511. Halo: Combat Evolved begins in 2552, meaning John is over 40 years old at the start of his adventure – a good 10 to 15 years older than many popular action heroes. At six, he was abducted from his home for the Spartan training program.
http://www.ign.com/articles/2015/10/05/9-things-you-probably-didnt-know-about-master-chief
There was a comment about the age of Master Chief in refernece to his age. The Master Chief was born in 2511, the fall of Reach happens in 2552. This would make the Master Chief 41 years old but the Master Chief is infact a weapon and would spend most of his time in cryo when he is not needed.
http://halostory.bungie.org/masterchief.html
OP 2/13/2015. In the legendary ending of Halo 4 I discovered that for the first time ever a part of the Master chief's face is visible. This is not in itself bad but He looks too old even by universe standards. For example, Doctor Halsey ho must be at least 30 years older than the chief still seems to be fit and rocking.
https://www.halowaypoint.com/en-us/forums/d76f090378914a9bb85312f87cf09b99/topics/halo-4-ending-makes-the-master-chief-look-old/ce3305a1-82a0-42a6-8a23-1f766d187726/posts
Master Chief (Halo) MCPON John-117, or Master Chief, is a fictional character and the protagonist of the Halo fictional universe created by Bungie. Master Chief is a playable character in the series of science fiction first-person shooter video games Halo: Combat Evolved, Halo 2, Halo 3, Halo 4, and Halo 5: Guardians.
https://en.wikipedia.org/wiki/Master_Chief_%28Halo%29
We have played as the Chief in Halo games for almost 14 years, but if you haven't checked out Halo's expanded universe, there's a lot of stuff you don't know about the guy in green.
http://www.ign.com/articles/2015/10/05/9-things-you-probably-didnt-know-about-master-chief
Buy the new Halo 5: Guardians Xbox One 1TB Limited Edition Bundle here! John, Spartan 117, Master Chief, John-117, whatever we want to call him, has been with us gamers for over a decade on the Xbox. We have saved humanity numerous times from alien zealots, parasites, and robots. Master Chief has, in his universe, done more for humanity than anyone else probably ever will.
http://www.denofgeek.com/us/games/halo-5-guardians/236684/halo-5-guardians-and-the-death-of-master-chief
Rather, the end of the timeline should be in 2542, putting the Master Chief at a healthy 31--considering late in the novel that John reflects on how Dr. Halsey recruited him 25 years prior. 2517 plus 25 would be 2542, not 2552.
http://halostory.bungie.org/masterchief.html
Recruit - Silver. In the legendary ending of Halo 4 I discovered that for the first time ever a part of the Master chief's face is visible. This is not in itself bad but He looks too old even by universe standards. For example, Doctor Halsey ho must be at least 30 years older than the chief still seems to be fit and rocking.
https://www.halowaypoint.com/en-us/forums/d76f090378914a9bb85312f87cf09b99/topics/halo-4-ending-makes-the-master-chief-look-old/ce3305a1-82a0-42a6-8a23-1f766d187726/posts
I don't know why, but there is one thing about the book that has always bothered me. According to the beginning of the novel, John (Spartan 117) was born in 2511. When the fall of Reach happens in 2552, that would make the Master Chief 41 years old.
http://halostory.bungie.org/masterchief.html
how old are is master chief?
The master chief is 41 years old. Master chief is 41 years old.