|“|| You know what I see? Targets!
—Clotho Buer, Mobile Suit Gundam Seed
Clotho is one of the three "Biological CPUs" assigned to operate one of the Earth Alliance's new Gundam mobile suits, GAT-X370 Raider Gundam. As with his comrades, his personal data has been erased from the military's records.
The talkative, quarrelsome Clotho is constantly arguing with his teammates, and he likes to shout out video game-inspired battle cries as he fights in his Raider Gundam. However, he can be rational at times, and he spends his time between missions perfecting his shooting skills on a portable game system. When in combat, Clotho seems rather psychotic, but mostly very proud. He is extremely upset when the Calamity jumps on his Raider in order to get back to their ship and shows extreme anger at the near misses the Calamity's weapons seem to throw his way. In his final moments, he seems to be suffering from withdrawal in his last attack on the Duel and Buster, showing a complete lack of restraint or self-preservation.
Skills & Abilities
Clotho's skills at first seem average, with a reckless combat style, but over the course of the war they gradually improve. He starts out utilizing the Raider's Mobile Armor mode heavily, firing on either Kira or Athrun when they have an advantage over his comrades.
Due to the deletion of his personal data, most of Clotho's life prior to his training is left unknown. It is implied that he was among the children sent to the Atlantic Federation's training facility at Lodonia. After successfully completing his training, Clotho would become the pilot for the GAT-X370 Raider Gundam.
First Alliance-PLANT War
The Battle of Orb
He and his teammates, Orga Sabnak and Shani Andras, would be first deployed to attack the neutral Orb Union. Prior to heading out, his team was prompted by Muruta Azrael, their superior and de facto leader of the Earth Alliance Forces, to avoid damaging the Mass Driver and Morgenroete. First, he and Orga would together target the Atlantic Federation's defected Archangel, only to miss.
After Orga disembarks Clotho's Raider and goes on his own, the latter would attempted his own second attack on the rogue Earth Forces ship, only to get intercepted by and then shift his focus to Kira and his Freedom Gundam. He and Shani would together engage Kira, albeit at the same time unable to cooperate by some amount. Unbeknownst to Clotho, Athrun Zala was also watching from outside, and intervenes with the Justice Gundam when the former was about to deliver the potentially final blow to Kira. Interested by the appearance of a new foe, Clotho and Shani engage their new target, and Clotho progressively gets annoyed by Athrun's dodging.
Their fighting soon attracts Orga's attention as he begins firing shots during their dogfight. As the fight drags on, the trio also begin firing at each other out of annoyance. Eventually, the effects of Clotho, Shani and Orga's drugs wear off and they fall back after suffering convulsions. Because of their failure, Muruta had the Alliance forces withdraw, and allowed the Biological CPUs to suffer as punishment before they received another dose.
In the second round, the trio would engage Kira again, and they would have the advantage until Athrun's arrival. When Orga's Calamity runs out of power, Clotho mocks Orga, telling him to leave if he wants and that he was on his own, but Athrun slices the Raider's mace, forcing him to return as well. Orga would then return the favor by insulting him back and boarding the Raider when it was in its Mobile Armor form, much to Clotho's annoyance at Orga not asking first. Despite being forced to pull back, the numerically superior Alliance was still winning the overall war against Orb, and the Alliance was closing in on Orb's mass driver.
Because of their second failure, they were given the same punishment. Although the trio did return to engage Kira and Athrun again, Orb's leader, Uzumi Nara Athha, makes the decision to send most of the country's remaining forces into space. While the Archangel escapes unscathed, Clotho, Shani and Orga attack Kira and Athrun during their attempt to join the Kusanagi. Despite their attempts, the pair are able to grab onto the ship and fire all their ranged weaponry to keep the Biological CPUs from following.
Once the Kusanagi escapes, Orb's leaders detonate the mass driver and their base as a final show of defiance to Azrael.
The Battle of Mendel Colony
After the loss of Orb's mass driver, the Alliance would go on to seize ZAFT's mass driver at their Victoria Base, and Clotho was among those sent to join the Dominion under Natarle Badgiruel. As a part of the Dominion, Clotho would once again find himself fighting against Kira and Athrun after the Archangel was found to have taken refuge near the Mendel Colony. Despite engaging, Kira and Athrun are able to eventually outlast the trio, and Natarle orders a retreat when the battle soon reaches a stalemate.
When the Kusanagi's engines are caught by the Colony's suspension cables, Clotho returns and attacks the Astray teams sent to cut the cables. While they are pushed back by Athrun, a shuttle intrudes into the battle with its lone passenger, Flay Allster, claiming to have the key to end the war. Upon seeing this, Kira lunges for the shuttle, and Shani and Clotho are able to make use of the distraction to destroy the Freedom's main camera. Because of the Freedom's damage, Athrun is forced to rescue his comrade while Clotho and his teammates claim Flay's shuttle.
Upon Flay's entry into the Dominion, the disc she passes would contain the nuclear secrets of both the Freedom and Justice, as well as the technology needed for the Neutron Jammer Canceller, giving the Alliance forces the justification to finally use nuclear weapons.
The Battle of Boaz / Operation Peacemaker
Clotho and his team would participate in the attack on ZAFT's space fortress Boaz. When the Peacemaker Force proceeds, he and his team cover them and ward off the ZAFT defenders, until the nuclear missiles destroy the base. He also enjoys the sight of the explosions.
After Boaz's destruction, the trio move on to aid in the destruction of the PLANTs. He then engages Yzak Joule and his GAT-X102 Duel Gundam in order to cover the nukes targeting the PLANTs. To their surprise, Kira and Athrun return with their units, now METEOR-docked, and destroy all of the nukes.
Enraged at the attempt at their homeland, ZAFT returns fire with GENESIS , which Clotho and his team would witness in shock as half of the Alliance's fleet would be snuffed out in a second. Due to the sudden unveiling of ZAFT's superweapon, all forces withdraw for a brief respite as they respectively deliberate the use of nuclear weapons.
Second Battle of Jachin Due
Believing that the weapon could very well target Earth, Azrael pushes for the destruction of the PLANTs once again and orders the Alliance forces to form a second peacemaker force to nuke the PLANTs. Once again, Clotho is sent to help defend the nukes, but they are stopped by Kira and Athrun once more. Clotho is then struck from behind by the GAT-X103 Buster Gundam, while engaging Yzak. While engaging Athrun, Clotho asks why they are fighting so desperately. When Athrun returns the question, Clotho simply replies that he fights because he doesn't want to lose; not that he ever would.
His death is portrayed differently in the TV series/HD Remaster and the Special Edition.
In the TV series/HD Remaster, after the death of the two other Biological CPUs, Shani Andras and Orga Sabnak, Clotho's mental stability begins to deteriorate as well as Clotho suffering seizures due to his drugs wearing off, and even though Raider's power was almost depleted, he continues to battle. He attacks Yzak in his Duel and the injured Dearka in his damaged Buster as they return to the Archangel. While Yzak was trying to counterattack with Duel's beam rifle, Clotho destroys it. He would keep pressing the assault on Yzak, pushing both himself and his Raider to the very limit. Yzak then used the Buster's rifle to replace the destroyed beam rifle, while Clotho charges the Raider's "Zorn" 100mm energy cannon. Both pilots fire at each other simultaneously; Clotho's shot only caused minor damage to the Duel, but Yzak's shot would hit its target, destroying the Raider and killing Clotho in the process.
In the Special Edition, Clotho is killed by Dearka and the Buster immediately after Orga's death.
Second Alliance-PLANT War
While he does not make an appearance, his data file does show up in the ruined Lodonia Lab.
- Just like other Boosted Men, Clotho's last name derived from a demon of Ars Goetia, President Buer.
- Buer is also a surname of German origin.
- In the Japanese version, when Orga, Shani, and Clotho are receiving their second dosage of Gamma Glipheptin. Clotho tells the doctors "I am very grateful" for the dosage.
- According to the item shop in Gundam SEED Never Ending Tomorrow, the game Clotho is playing is called "Great WSXXX" and in the SEED Facts menu, "Great Wonder Swan XXX", a reference to the real world handheld game console "WonderSwan".
- Clotho appears in the Extreme Vs. series as the Raider's pilot. He and Orga also appear as the Forbidden's support units.
- Clotho will act friendlily towards Stella Loussier and Sven Cal Bayang considering them to all be the same and wishes for them to get along.
- Clotho offers lessons to Leos Alloy on ways to kill Coordinators. He will not think too deeply over Celestial Being's desire to exterminate war, simply replying that the real ones that should exterminated are the Coordinators.
- Clotho is intrigued by the design of Mobile Fighter G Gundam's units and is interested about a Gundam fight. He will also taunt Allenby Beardsley in particular, asking her if she'd be fine having a Gundam fight against him and sees similarities between himself and her Berserker System.
- Clotho sarcastically notes that Nena Trinity can be a rather terrifying person. When meeting Katejina Loos, he offers to become friends as they are both considered a bunch of crazies. He also gives special notice when fighting Allelujah Haptism.