Dirk

Klaus (クラース) was a member of the Survey Corps and a Squad Leader during the Corps' mission to reclaim Wall Maria.

Appearance
Klaus was a man of average height and build, with long, blond hair that he kept pushed back out of his eyes. He also had a thin beard on his chin and cheek bones, and a small mustache. When not wearing the standard Survey Corps uniform his attire consisted of a white button-up shirt, dark pants, and a black vest.

Personality
Klaus was a serious man and a loyal Survey Corps member. He seemed to be a trusted subordinate, as personally escorted, and advised Erwin Smith during the the Corps' mission to Shiganshina.

Return to Shiganshina arc
Klaus attended a meeting between Erwin and the other Survey Corps Squad Leaders to discuss the recent revelations involving Eren Yeager's father Grisha. After the meeting, Klaus suggested possibly punishing Keith Shadis for withholding information from the Military, but Hange Zoë dismissed the notion, claiming Shadis wasn't worth it. Later, Klaus can be seen watching with his fellow leaders as the Corps' soldiers fight each other for the meat that is being served in celebration of the mission recapture of Wall Maria.

After Eren successfully seals the hole in Wall Maria, Klaus and Erwin standby atop Wall Maria. Klaus is surprised to see that no one has attacks, and wonders if the Corps' forces are too much for Reiner and Bertolt to handle. He is interrupted by the arrival of Armin Arlert, and is shocked to learn that Armin has found evidence of a third person accompanying Reiner and Bertolt. After Erwin gives Armin command of the Survey Corps so that he can look for Reiner and Bertolt, Klaus comments on the big gamble Erwin has taken, and asks if the Corps will be staying until Reiner and Bertolt are found, which Erwin confirms.

When the Beast Titan reveals himself and his forces, Erwin orders Klaus' squad to meet up with Marlene and Dirk's squads, to protect the Corps' horses. Klaus and his fellow soldiers fought off approaching Titans while the recruits in Squad Dirk took the Corps' horses to a safe place. After finishing the Titans on his side of the battlefield, Klaus reported to Levi that only a few Titans were left, and urged Levi to rest while he and the rest of the soldiers handled them. However, before he could engage any more Titans, Klaus and his teammates were cut down by a barrage of rocks thrown by the Beast Titan. Klaus, managing to survive the first wave of rocks, only had time to observe the corpse of one of his allies before being torn to pieces himself.