The Silent Giant AKA Numbuh 133 is one of the most powerful and secretive members of all of the KND. He is also the only member of the KND to wear a helmet (especially for its design). He was also the tallest member of the KND, standing at 6ft 7.

Not much is known about the Silent Giant's childhood. All is known about his childhood, is that he was born in Holland, in the Titan Netherlands, during the Reign of the KTD, making him a formal resident of Titan Europe. Nobody even knew who his parents were nor where they went. But the KND Science department theorized that the giant was most likely an orphan.

However it was discovered in 2008, KND scientists theorized that he was born in the late 80s, or early 90s, but the actual age could be even older.

In December of 1990, a member of the KTD discovered the giant, and brought him to The "HelviskSthein" Base. The "HelviskSthein" base is the headquarters to the Lvintage Battleklan, the deadliest division in all of the KTD. Where he was trained under The deadliest member of the KTD, Cyrus the conqueror.

But, there was a downside, the Giant was a pacifist, meaning he couldn't join any of the missions that the other members did. But, he was tasked with being the bodyguard to the base. Then, in 1991, a kid was imprisoned for something that he was wrongfully accused for, he told the giant, and knowing the code, and being a pacifist, he released him without the leader knowing. But, one of the members found out, and told Cyrus.

Then, The Giant encountered some of the most horrific beatings of any KTD member in the history of the organization.

They beat him, threw giant stones at his face, the list goes on. In fact, he was so badly beaten, that the KND science department determined his face to be "the equivalent of a person thrown into the lake of fire, over the course of 100 years. Then, they put him in a silk bag, carried him to the coasts of the Netherlands, and left him there."

Than, after about 5 hours, he finally broke out of the bag, and began to find some shelter so that way he could sleep. He found some at a nearby city, where he discovered that a cargo ship was shipping out to America. (that was also controlled by the KTD from New York, New Jersey, and the Carolinas.)

He temporarily stayed at a hotel off the coast of Holland, then afterwards, he found his way on the cargo ship, Where he discovered the helmet making robot, A-R-K X. It was there that his famous helmet was created.

Then in late 93, he landed in Eilenberg, Maine.

In early 1994 at Wingus, Alabama, he spotted some kids in the street being threatened by members of KTD, after the conclusion of the KTD's Wingus Campaign which took over about 4 Treehouse sectors in the zone, he went over and helped defend the kids.

The KTD almost won that brawl, but 133 beat them with nothing more than his bare fists. Little did he know that the kids were actually members of the KND, where he would not know that his actions were able to cause the KTD to lose at Wingus 2 days later.

He was then taken to the KND headquarters, where they made him the official bodyguard for the KND.

He was given his Numbuh some time after he was let in the KND.

In early 2002, Numbah 5647 discovered that ice in the island of Greenland, if used for radioactive purposes, could result in a chain reaction that could be used to destroy KND bases. So, the leaders of KTD sent hundreds of operatives (including the Helviskthein battleklan) to the Arctic in order to attempt to gain more territory due to the massive amounts of territory being lost to the Kids Next Door since 2001, and The Supreme leader Numbuh 100 found out, and saw this as a threat (due to the fact that the KTD were losing territory on all fronts, and were getting desperate in an attempt to use something dangerous in order to turn the war in their favor.) along with the threat of the KTD Homeland being Invaded,) So, they sent multiple sectors of (including 133's sector and Numbah 65's sector) To stop them from gaining the territory and using it as a way to make bombs. They managed to stow away in multiple cargo ships, in order to reach the nuthersfield area.

After arriving in Greenland, the sectors split up in order to get the enemy on multiple sides. The KTD army was lead by Cyrus the conqueror. So, Numbahs 89 and 76 were sent out to scout the area. Where a 182 went off, and they were never seen again. So, they began their pursuit to The KTD base camp they set up. Hundreds of KND members were now in pursuit with members of The Helvisksthein Battleklan, The ellmora Division, Sector M-G, and other KTD squadrons.

Sectors X, G, and other Sectors were sent on the frontline. They began their pursuit, and at first, they were doing fine. However, the KTD were stronger than ever, They even had military style tanks that would easily take out anyone who basically is a enemy. And then, more and more KTD forces showed up out of nowhere and started attacking the 3 sectors. It got so bad that Yveltel or Numbah 801 called an emergency retreat back to base

Day 1 of the battle was devastating, 31 different KND members were killed in the war, and Several members were injured. All hope may have been lost. But then, Hundreds of KND troops from across the country, if not, the world, were sent over to Nuthersfield after a Level 99 was alerted to the KND headquarters, which sent the forces to Nuthersfield. So KND gained the reinforcements, but KTD were also gaining more and more squadrons, weapons, and even managed to get an air-strike in there arsenal.

Then Day 2 arrived, and the enemies and KND were about to get ready for the 2nd wave. Than, 133 noticed something, he noticed that Cyrus the Conqueror was present at the battle. 133 wanted revenge against Cyrus, and other members of the Battleklan. Then, 133 decided that he was gonna be the one to take out Cyrus, and the other generals of the battleklan. To the rest of the KND, they thought it was the most insane idea ever, and they were worried he was going to get stunned, and forced to remain home for several months. But he insisted by sign language that they should trust him. So, they put him the rest of the teams out on the lines, attacking other ktd members, and helping them win.

Than, it was just 133 in the center of the field, armed with his weapons, he gained his way to the base, where hundreds of different KTD members were there attacking him. 133 took them out with every form of punishment he could give, and a large chunk of Soda bombs. He managed to defeat 300 different soldiers before the rest of his sector made it into the base that was still under construction.

Before he knew it, he managed to make it to Cyrus. Cyrus recognized who he was, and was shocked that he even was able to have courage after having to be a pacifist 10 years ago. But, Cyrus told the giant that he was just as a coward as he was when he joined. That he wished he could've given him another Atomic Wedgie and wet Willy like hed did in the good old days.

Than, a fist fight began with him, and 133 (which led to weapons being used). Other KND members looked on as 133 was battling head on with the KTD's deadliest member.

They spent the next hour using everything they got so that way one could be beaten, while other members tried to stop the KTD from causing any more damage to the KND.

Than, one of the airstrikes was called in , and was headed directly above 133 and the rest of the base. 133 survived the explosion of Soda and electricity, and so did most of his sector, He asked Cyrus if he wanted to be saved so that way he could get the justice he deserved, Cyrus told him no and stuck his tongue at him much to 133's annoyance, and only for a piece of rubble from the ceiling to strike him on the head causing him to become dazed, and fall directly to the ground knocked out, after a while, where his knocked out body was carried out by Numbuh 133, the battle was over.

The KND science department determined that this fight was the most devastating fight in the history of the KND. 125 KND troopers were stunned, and had to be sent home for months to recover many were injured.

300 KTD soldiers were eliminated in the battle, and sent home where there parents at the time of seeing the loss of KTD Territory in Europe and the Caribbean, started to stand up to their KTD Operative oppressor's and began to ground them for long periods of time, as well as Cyrus, and other KTD generals, who were grounded until Collage.

Several members of the battleklan were placed into custody, while only 4 escaped, but they too were put under arrest. After the battle, The KTD lost the Greenland territory, and their chance to gain ice bombs that could've destroyed the KND base. This ultimately was one of the final battles fought in the K-Civil war before KTD's Downfall.

After the battle ended. about a dozen KND members (including 133, Yveltel, Numbah 52,) were rewarded with the highest honor that the KND can offer: The medal of Bravery and courage. 133 was the first to be honored with this award because his actions (along with the others) had lead to the downfall of one of the KTD's most powerful sectors, and had helped save the KND from total destruction, Numbuh 133 would eventually continue to fight the KTD despite his justice being achieved, as he figured that the KTD still actives was still a stain on how adults' and teens would view kids, his wish came in the fall of 2002, when Operation E.N.D W.A.R was made, and Numbuh 133 took part in the Invasion of the KTD's hometown of New York City, until the war finally ended on December 6th, 2002, and the fall of the Kid Titans of Demoral.

The Supreme leader of the KND Numbuh 100 said "Let us remember what these fine troops that were stunned and forced to be sent home for several months for recovering after the engagement in Nuthersfield, for there actions not only saved countless KND members and this organization, But they have also saved countless teenagers and adults lives." The fallen Operatives that were stunned at Nuthersfield would tragically not see the celebration of the wars end, nor take part in E.N.D W.A.R due to them having to spend 10 months in a hospital and at home recovering from stun burns, it would not be until 2003 when most of these operatives would return to the KND in full health.