Moblit Berner was a veteran member of the Survey Corps and the vice captain of the Survey Corps Fourth Squad, under the command of Hange Zoë. He also served as Hange's assistant and messenger.
Moblit had short, smooth, light hair parted down the middle. He was of average height and build, but often carried a worried expression due to his superior officer's wild and impulsive personality. Moblit wore the typical uniform of a member of the Survey Corps with a button up shirt underneath, but he was sometimes seen wearing black pants with a white button down. On missions, he would wear the Survey Corps green cloak.
Moblit came across as an intelligent and responsible person, which may have been the reason he was tasked to keep his overzealous and eccentric superior out of trouble. Much of the time, this left him in a state of near-panic, having to constantly remind Hange to be more careful or yanking them to safety. That he remained at her side constantly suggested he was a loyal person, regardless of the stress involved with being under their command. However he was able to show signs of a serious nature when it came to missions, such as the time he twisted Peaure's hand when he was taking notes or when he held Djel Sannes' chair down when he was being tortured.
Appearance: Moblit had short, smooth, light hair parted down the middle. He was of average height and build, but often carried a worried expression due to his superior officer's wild and impulsive personality.
Personality: Moblit came across as an intelligent and responsible person, which may have been the reason he was tasked to keep his overzealous and eccentric superior out of trouble. Much of the time, this left him in a state of near-panic, having to constantly remind Hange to be more careful or yanking them to safety.
Moblit Berner in the story: Moblit first appears as Hange Zoë's assistant, standing nearby as Hange attempts to establish communication with the captured Titans whom they named Sonny and Bean. He is immensely panicked by Hange's seemingly reckless attempts to get the two Titans to respond to them, repeatedly telling Hange to step back. When Hange purposefully jabs Bean in the heart with a long pole in order to determine the Titan's reaction to pain, Moblit is worried by their hysterical reaction to the Titan's pain.
How Moblit Berner echoes later: When Hange decides to oppose Eren's plan to destroy the world beyond the Walls, Moblit is one of the soldiers Hange remembers when arguing that their fallen comrades would not support destroying the world. When Hange sacrifices their life to ensure their comrades' escape from the Rumbling in Odiha, Moblit is among the souls of fallen Survey Corps members to welcome them in death. He, Mike, and Erwin are the first to greet them, and Moblit helps Hange up from the ground.
Source: Attack on Titan Wiki, available under CC BY-SA 3.0.