Bertholdt Hoover (ベルトルト・フーバー Berutoruto Fūbā?) is a graduate of the 104th Cadet Corps and a former member of the Scout Regiment. He ranked 3rd in his class, and is described by others as a weak-willed and quiet person. He is rarely seen without Reiner Braun, his close childhood friend, both of whom originate from an unknown area which he refers to as his hometown. As the Colossal Titan, he is humanity's greatest threat.
Along with Reiner and Annie Leonhart, he is a person that possesses the ability to transform into a Titan. In the year 845, he used his power to help Reiner breach Wall Maria and infiltrate the military for unknown reasons.
Bertholdt is a rather tall, slender young man. He has short, dark hair, pale green eyes, thin eyebrows and an elongated face. He is seen mainly in his trainee uniform, and after he enters the Scout Regiment, he uses their uniform with the green hood on missions. He is also noted by others to always be sweating. In his casual clothes, Bertholdt wears a blue sweater with a white button down underneath and tan pants.
Bertholdt is a quiet young man who identified himself as someone with a weak will that follows popular opinion. Likewise, his instructor noted him to be a person with great potential, but an utter lack of initiative. He is further described by Eren Jaeger as being taciturn, and Bertholdt tends to remain in the background unless necessary. By his own admission, he is something of a coward and is noted for his low self-esteem.
Bertholdt joined the 104th Training Corps with aspirations of joining the Military Police and living in the safety of the inner Wall. As part of the 104th, he was considered to be one of the best in regards to omni-directional mobility gear, enough so that Eren Jaeger came to him for advice when he was dealing with faulty equipment.
After seeing Eren's determination and desire to join the Scout Regiment, he considered himself a coward for wanting to get far away from the Titans. However, Eren encouraged him, saying that after witnessing the attack on his village, no one would blame him for his decision. Eventually, he graduated in the top ten of his class coming in at third place, just under his friend Reiner.
When Armin, Mikasa, and Conny made it to the headquarters, with the help of the Mysterious Titan, Armin devised a plan to get rid of the Titans in the supply room. Bertholdt, part of the second group, came in from the ceiling and killed his target in one blow. The mission was a success and after everyone resupplied, he and the rest of the group leave the headquarters.
On the way out, he joins Mikasa and others on a rooftop as they watch the rogue Titan being eaten by other Titans. Reiner suggests helping it out, but ultimately it ends up not being necessary as the Titan fights his way out upon seeing the Titan that ate Thomas. After the rogue Titan kills it, the Titan collapses, and Bertholdt is among the first people to learn of Eren's ability.
Bertholdt participates in the Scout Regiment's 57th exterior scouting mission into Titan territory, sticking close to his friend Reiner the whole time. The mission is fairly slow paced for him until he arrives at the Forest of Giant Trees with his group and is ordered to be on standby. He waits in the trees with his comrades so that they may stop any Titan from entering the forest where their superiors are. After awhile of little events, a loud Titan scream can be heard from within the forest and several Titans begin to charge in. Bertholdt is among the soldiers as they attempt to stop the Titans from entering.
After the Titans are gone beyond the soldiers watch point, Bertholdt sees the smoke signal indicating the time for retreat. He regroups with his comrades and they head back to the walls. Upon re-entering the gate, the Scout Regiment receives comments and criticisms for their loss of life and lack of results.
During the assault on Stohess District, several of the 104th Cadet Corps recruits including Bertholdt are kept at an outpost in Wall Rose under suspicions of a Titan spy being among them. They are under the watch of Miche Zacharius and a number of Scout Regiment soldiers until further notice. While they wait inside, Sasha and Conny complain of boredom and mention that their villages are near by while Reiner and Bertholdt sit across from each other playing chess. Reiner then expresses suspicions of their reason for staying in this location as they are unarmed despite the rest of the soldiers being fully equipped. Sasha then begins to shout about hearing foot steps but is brushed off briefly. She continues to shout until Nanaba stops at the window, opens it, and informs the 104th that several Titans were just spotted to the south of Wall Rose, saying that they must mount their horses quickly without gear as they are pressed for time. Reiner expresses panic at the notion of Titans within the Wall to Bertholdt before they begin to tack up their horses and the soldiers move out with the goal of evacuating and informing citizens.Miche asks if anyone is familiar with the area, and Sasha notes that both she and Conny know it. Asking to go to his village after leading the southern group, Conny accepts the task from Miche and is joined by Reiner and Bertholdt for aid. During their escape, the Titans begin to sprint and start to catch up to the soldiers and their horses. Miche realizes this and takes charge to divert their focus and separates from the group so that they may escape. Watching him go, Bertholdt breaks off into one of the four teams as they split up and leave.
After discovering Conny's village to be deserted, the Southern team meets up with Ymir and Christa's team, and they decide to take refuge for the night in Utgard Castle. At some point during the night, the castle comes under attack by Titans and the recruits are forced to defend the interior from the smaller Titans that have invaded. After Reiner takes off on his own to investigate, Bertholdt offers a strange observation of his friend's "bad habit" of risking himself for others. When a Titan manages to break through a stairwell door, he comes to Reiner's defense with a pitchfork and helps fight it off. The two reaffirm their promise to survive and return to their home together.
After a second Titan manages to enter and injure Reiner, he helps Ymir toss it out a window. Afterwards, he begins to behave in a withdrawn manner and responds to questions about how Reiner was in the past with a strange comment about how Reiner has changed and is no longer a "warrior". However, he refuses to elaborate further on the subject.
Eventually, their superiors are killed by the attacking Titans and the rookies are left defenseless. This drives Ymir to reveal herself to be a Titan, using her powers to protect the others. Thanks to her efforts and the timely arrive of Hange's soldiers, the rookies are saved.
The Scout Regiment takes stock of their injured on top of Wall Rose and when Eren sympathizes Reiner and Bertholdt about being driven out of their hometown, Bertholdt uses that to push Reiner to remember their desire to go back to their hometown. His cryptic words about how there is barely anything left to do cause Reiner to remember something.
Reiner confesses to Eren that he and Bertholdt are the Armored and Colassal Titans and broke down the Wall five years ago to destroy humanity. Bertholdt asks Reiner why he is revealing this, but Reiner ignores him, leaving Bertholdt clearly uneasy. When Eren refuses to go with them, Reiner tries to take him by force, but Mikasa intervenes, attacking both Bertholdt and Reiner. She nearly kills Bertholdt, but Reiner saves him and the two use their injuries to transform into their Titan forms.
While Eren changes into a Titan and fights with Reiner on the ground below, Bertholdt remains anchored to the Wall with his ribs. He attacks the Scout Regiment, capturing both the unconscious Ymir and an unnamed Scout Regiment soldier. Bertholdt swallows both. The Scouts attack him in return, trying to overwhelm him due to the Colossal Titan's slower speed, but Bertholdt emits a blast of scalding steam, forcing them back. Rather than disappearing though, he remains stationary and continuously billows heat to keep the Scouts away.
When Reiner begins losing his battle with Eren, he drags the two of them just beneath Bertholdt's position on the wall and roars. In response to the signal, Bertholdt breaks free and plummets down on top of the two Titans. His Titan lands in an explosion of steam and hot air strong enough to push back even the soldiers still hanging on the Wall. This gives Reiner the opportunity to overpower Eren and bite him out of his Titan. Bertholdt emerges out of his own Titan voluntarily, carrying Ymir and now wearing the omni-directional mobility gear of the soldier he had swallowed. He grapples on to Reiner's Titan and the two of them flee with Eren and Ymir.
Bertholdt and Reiner take a break in a Forest of Giant Trees to rest until sunset, when ordinary Titans will become inactive. Eren regains consciousness during this time and begins arguing with Reiner. At one point Reiner becomes completely confused, concerning Bertholdt. When pressed by Ymir, Bertholdt admits that this is not the first time that Reiner has behaved this way. Ymir concludes that convincing himself that he is a soldier is how Reiner is able to live with himself, considering all the damage he has done as a warrior.
While Reiner is upset from Ymir's analysis, Eren asks Bertholdt how he felt when he told them that his mother was eaten because a piece of the Wall he kicked landed on their house and she could not escape. Bertholdt confesses that he felt sorry for Eren, but Eren loses any sympathy he might have had for them.
Bertholdt and Reiner spot Scout Regiment signal flares sooner than expected and prepare to leave. He makes sure that Reiner is in a "warrior" state of mind and Reiner assures him that he is. Reiner also tells Bertholdt that he should confess his feelings to Annie, after they bring her, Christa, and the "Coordinate" back to their hometown. Bertholdt is flustered by the suggestion, but Reiner tells him that they're both murderers with short lives ahead and that who else would understand what they have been through other than one of their own.
Reiner subdues Eren while Bertholdt asks Ymir if she remembers who she ate to become a human again. She does not, but apologizes realizing that it must have been one of Bertholdt and Reiner's friends. Bertholdt is not upset though, and tells her that it was also the same for him. Once Eren is secured, the group of them flee with Bertholdt carrying Ymir and Reiner carrying Eren, but when Ymir sees the signal flares, she realizes that Christa is likely with the Scouts and asks to retrieve her. When Reiner says no, she begins interfering with Bertholdt's maneuvering and threatens to take Eren away from them and go back to the Scouts.
Without much choice, they wait at the edge of the forest for Ymir. When she returns, Reiner transforms into the Armored Titan to escape and Bertholdt grapples on to his shoulder while carrying Eren. Despite their head start, several of their former comrades catch up to them on horseback and Bertholdt calls out for Reiner to protect him. The Armored Titan covers the front of his neck with his hands, providing a small sheltered space for Bertholdt and the captive Eren.
Undeterred, Jean and Conny bang on Reiner's armor and remind Bertholdt of the times they shared together, even the mundane and silly moments like using Bertholdt's sleeping positions to predict the weather. When they ask him if their friendship was a lie, Bertholdt breaks down and tells them that it was not. Nobody wants to kill people, but someone has to be the one to get blood on their hands.
Their conversation is interrupted when Erwin leads a horde of Titans into Reiner. The Armored Titan buckles beneath the swarm, forcing Reiner to remove his hands in order to break free and exposing Bertholdt and Eren to attack. Mikasa takes advance of the opportunity and Bertholdt narrowly dodges her attempt to kill him.
Armin lands on the side of Reiner’s head and provokes Bertholdt by telling him than Annie is being tortured while he and Reiner are about to escape without her. This is enough to enrage the normally passive Bertholdt and he turns to attack Armin, creating an opening for Erwin to cut Eren free and sever one of Bertholdt's grappling lines. Bertholdt falls, dangling from his one remaining line, and is unable to stop Eren from being taken away.
During Eren's escape, he strikes a particular Titan and screams. The sound reverberates through Bertholdt and Reiner as the smaller Titans charge and devour the one Eren had faced. As they realize that Eren does indeed hold the Coordinate they are looking for, Eren's rage turns to them and he screams for them to get away. The Titans then turn to attack Bertholdt and Reiner as well. The two are about to be overwhelmed, with Reiner being unable to protect Bertholdt, when Ymir comes back to aid them.
After the battle, the three catch their breaths on top of Wall Maria, having managed to survive. Reiner asks Ymir why she bothered to save them and she says that she is grateful for what they did for her, because if they had not come to break the Wall, she would never have woken from her nightmare. She knows they cannot go back empty-handed, so she is returning what she had borrowed. Bertholdt, overcome with emotion, thanks her and apologizes.
|Highly proficient in various hand-to-hand combat styles and has great potential. But lacks in self-confidence and tends to leave it to others when it comes to showing assertiveness.|
|— Instructor Keith Sadies regarding Bertholdt's training|
Bertholdt graduated in 3rd position among the trainees and was noted as the best user of the omni-directional mobility gear among them. He managed to kill a small Titan without the use of the omni-directional mobility gear. Due to his high-level position, he is also likely to possess other Military and combat skills.
- Reiner Braun - Reiner is his childhood friend, and the two are rarely apart. Bertholdt almost always follows along with whatever Reiner decides and values him as a friend.
- Eren Jaeger - Though friendly, the two are not particularly close in comparison to Eren and Reiner's friendship. Bertholdt expresses admiration for Eren's courage and the strength of his conviction to fight even after experiencing the horror of a Titan attack. After Bertholdt and Reiner reveal their true identities, Eren discards the time they spent as friends in during training and now views him and Reiner as despicable traitors, and vows to kill them slowly and painfully.
- Numerous counts of Shiganshina District
- Carla Jaeger
- Thomas Wagner
- Milieus Zeremski
- Mina Carolina
- Nack Tierce
- Franz Kefka
- Marco Bodt
- Mitabi Jarnach
- Ian Dietrich
- The official site reveals his nickname is "Bertl" (ベルトル Berutoru?).
- His name is Old German in origin, meaning "Bright Strength".