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For the second pilot of White Glint that appears in Armored Core: For Answer, see Anatolia's Mercenary.
White Glint-Emblem
Joshua O'Brien
General information
Japanese name ジョシュア・オブライエン (Joshua Oburaien)
Classification Human
Gender Male
Affiliation and military information
Affiliation Aspina
Occupation Lynx
Rank # 40
Craft NEXT White Glint,
Eras present Pax Economica,
Lynx War
Real world information
Appearances Armored Core 4
Armored Core: For Answer
Voice actor English: Daryl Kurylo
Japanese: Johji Nakata

Joshua O'Brien is a Lynx affiliated with the NEXT development corporation and colony Aspina. In addition to helping them refine the AMS control system, he takes contracts for the corporations during the Pax Economica to help keep Aspina afloat.

He is laid-back, friendly, and gentlemanly, and possesses an extremely high AMS aptitude and fighting skills. Due to Aspina's roots with the colony Anatolia, he also has connections with people such as Fiona Jarnefeldt and Anatolia's Mercenary.


During the Pax Economica and the Lynx War, he fights mainly for the Omer Group due to its ties with Aspina. One such mission involves him and Anatolia's Mercenary preventing a force of Sol Dios behemoths from reaching the Sing Colony. By the end, he destroys Akvavit at the same time Rayleonard's Exavil falls to Anatolia's Mercenary, effectively ending the war with the two corporations' collapse.

Afterwards, he pilots the prototype NEXT 00-ARETHA to raze Anatolia and is subsequently killed in battle by Anatolia's Mercenary. His finals thoughts are that his own death is "for the best."[1] According to journalist Friedman Ray, this was a plot by the fearful corporations to get rid of Anatolia's Mercenary, and Ray speculates that it was Omer Science Technology in particular that ordered Aspina to have Joshua use the 00-ARETHA.[2]

He is honored years later in the Economic War by the second "White Glint," and the "the second coming of Joshua O'Brien" is used to refer to the elite Lynx Julius Emery.


"Desert Wolf" (Hard Mode)[]

  • "This is White Glint. Lynx Joshua O'Brien. Help is on the way. Hold out till I get there."
  • "Gotcha!"
  • "Die!"
  • "He's actually got me on the defensive."
  • "I will be the one to finish this."
  • "Ugh it's no good. I'm grounded here!"

"Sea of Blood" (Hard Mode)[]

  • "This is White Glint. Lynx Joshua O'Brien. Help is on the way. Hold out till I get there."
  • "Gotcha!"
  • "Die!"
  • "He's actually got me on the defensive."
  • "I will be the one to finish this."
  • "Ugh it's no good. I'm grounded here!"

"Empress" (Normal Mode)[]

  • "Lynx, Joshua O'Brien. Help is on the way. Hold out till i get there.''

"Sol Dios"[]

  • "This is White Glint. Hey Raven, I've heard good things. Let's get this done."
  • "Too slow... Gotcha!"
  • "See you around kid."
  • "I don't want to get in your way. Sorry--I'm pulling out."

"Seed a Barren Earth"[]

  • "Hey. I guess there's little need for words..."
  • "I won't ask you to forgive me. Hate away."
  • "(coughs) I'll be right behind you. You can chew me out on the other side."
  • "So...this is the end. (coughs) This is for the best."


White Glint[]

NEXT Schematic AC4 White Glint

NEXT White Glint

Joshua O'Brien's NEXT is a white light bipedal unit called White Glint. It has a SALAF core, HOGIRE head, and JUDITH arms and legs. It is armed with a Rosenthal assault rifle, Omer Science Technology laser blade, and back laser cannon. This white NEXT is designed for extremely high speeds, and gained its name for being so fast that it appears only as a "white glint" to witnesses. Its main and side boosters are Aaliyah, its back is Hogire, and its over booster is the KB-Pallas. It has a Judith FCS and a Rayleonard Maxwell generator. Despite minimal armaments, the unit is quite capable of effectively fighting other NEXTS as well as the Sol Dios, a testament of both the pilots skill and the capability of White Glint.

White Glint is designed by Ab Marsh (Abu Marshe in AC:FA) who would later design the second White Glint for Anatolia's Mercenary.


  • Head Stabilizers
  • Core Stabilizers
    • Core R Upper: None
    • Core L Upper: None
    • Core R Lower: None
    • Core L Lower: None
  • Arm Stabilizers
  • Leg Stabilizers
    • Legs Back: None
    • Legs R Upper: None
    • Legs L Upper: None
    • Legs R Middle: None
    • Legs L Middle: None
    • Legs R Lower: None
    • Legs L Lower: None


Any not listed are 0 Points

  • EN Output: 50 Points
  • EN Capacity: 30 Points
  • KP Output: 50 Points
  • (Head) PA Rectification: 10 Points
  • (Core) PA Rectification: 40 Points
  • (Arms) PA Rectification: 30 Points
  • (Legs) PA Rectification: 30 Points
  • (Side Booster) Quick Thrust: 47 Points
  • Stability: 20 Points
  • Impact Stability: 30 Points


  • Base/Stabilizer
    • Main: RGB 208 207 215 - HSV 69 4 84
    • Sub: RGB 160 172 195 - HSV 61 18 76
    • Support: RGB 158 158 158 - HSV 0 0 62
    • Optional: RGB 181 149 109 - HSV 9 40 71
    • Joint: RGB 55 52 39 - HSV 14 29 22
    • Device: RGB 255 255 255 - HSV 0 0 100
    • Eye: 83 162 255 - HSV 59 67 100
  • Weapon
    • Main: RGB 12 13 19 - HSV 64 37 7
    • Sub: RGB 241 243 255 - HSV 64 5 100
    • Support: RGB 158 158 158 - HSV 0 0 62
    • Optional: RGB 141 140 138 - HSV 11 2 55




Joshua O'Brien later pilots prototype NEXT 00-ARETHA. It has a very distinct appearance in comparison to its fellow NEXTs; first and foremost, it stands about 1.5 times taller than even the largest Next, and has particularly long arms. The craft also seems to lack a traditional head part, with its sensors seeming to meld into the machine's core. Completing its silhouette are its massive guns, which are longer than the machine is tall, and will most likely be the first thing one notices while looking at the machine. Despite these differences, an examination of the core and the shoulders would give it more than a passing resemblance to the Aaliyah family of crafts.

Unlike its smaller predecessors, the ARETHA has only a single set of weapons, but makes up for this lack of modularity by being far more powerful than a normal NEXT's weapons. On the left side, the ARETHA has a large scale plasma cannon with high power, long range, and high velocity for this weapon type. On its right side, the ARETHA equips a quintuple Gatling gun which is capable of shredding AP chewing straight through PA in seconds.

In terms of speed, this unit has a unique "Mega" Quick Boost that allows the ARETHA to disappear in a blur of red flames, giving the appearance of teleportation; it could also use this in rapid succession, making targeting the ARETHA almost impossible, as well as making any attempt at close combat equal to suicide. Also, QB somehow leaves a missile-misdirecting "flare", although not explicitly referred to as such. As a last resort weapon, the ARETHA also had a prototype Assault Armor, which, while less damaging than its later counterparts, has far greater range.


  • Gatling Cannons
  • Large Scale Plasma Cannon
  • Experimental KRB system with impressive range


Joshua O'Brien is an NPC in Armored Core 4. Throughout the game, he plays the role of the player character's ally and sometimes rival, depending on the situation. For example, the Hard Modes of missions requiring the player to kill other Lynx such as "Desert Wolf," "Sea of Blood," and "Empress" feature him as an additional hostile. He is also an opponent in the Simulator for Data Pack NDP-S001.

It is possible to accidentally disable White Glint in the missions in which he provides assistance by firing explosive weaponry such as the grenade launcher too close to him.

Simulator profile[]

An early AMS test subject, this ideal mercenary from Aspina pilots a custom AC tuned for extreme speed. His tactics are sure and refined.[3]


The following information is "gray area" content — it may not be completely factual, and/or falls under YMMV territory.

Joshua's strategy is to use his extreme speed to outmaneuver his opponent. Often staying at mid-range, he will whittle away at enemies with his assault rifle, while taking occasional shots with his laser cannon. If an enemy gets too close, he may use his laser blade before retreating to a safe distance. The best ways to eliminate him is to use heavy weapons or to use tracking weapons that can keep up with his speed (mainly missiles).



  • The word White Glint, the name of Joshua O'Brien's NEXT, refers to a small flash of light reflected off a surface.
  • Joshua's emblem is a stylized Eye of Horus resembling Shade's from Armored Core: Silent Line.
  • Joshua's White Glint is one of several Armored Core NEXTs to have model kits based on it. The upgraded version of White Glint piloted by Anatolia's Mercenary as it appears in Armored Core: For Answer also has model kits based on its design.



  1. Armored Core 4, Mission: "Seed a Barren Earth"
  2. Armored Core: A New Order of "NEXT", page 57
  3. Armored Core 4, Simulator: Data Pack NDP-S001


The following information is "gray area" content — it may not be completely factual, and/or falls under YMMV territory.

  • Joshua is thought to have been blackmailed by Omer Science to destroy Anatolia. This is reinforced by the presence of Celo, who is one of Omer's top LYNX.
  • J from Armored Core Verdict Day is heavily implied to be a clone of Joshua.