Akiyama

Akiyama  is a Deadman, previously imprisoned in Deadman Wonderland and a former member of Scar Chain. He is one of the surviving members of the Deadman mass prison break. After the prison was shut down, he came back along with the infiltration team as part of Operation Mother-Gizmo Reinforcement in order to stop Hagire Rinichirō and seal off The Wretched Egg's powers.

Background
At some point in the past, Akiyama was imprisoned in Deadman Wonderland. Later, he joins a resistance faction within the prison known as Scar Chain.

Appearance
Akiyama is a dark-skinned man. He has squinted eyes and a bald head. He dresses in a white shirt with a dark blue striped sweater over it and regular pants.

Scar Chain arc
Akiyama participates in the Deadman mass prison break. In the first attempt, he is amongst Ganta's group carrying the data chip. After taking an elevator, the group encounters Genkaku. In the ensuing battle, Akiyama was one of the few deadmen that survived.

In the second attempt, Akiyama and the other survivors of Scar Chain come to Karako's rescue. He is shown escaping Deadman Wonderland on a ship alongside Karako after defeating the Undertakers.

Return to Deadman Wonderland arc
Akiyama returns to Deadman Wonderland with Karako as part of Makina's forces on the mission to seal the Wretched Egg and saves her.

Abilities
Branch of Sin: Akiyama is a Deadman, so he can freely move his blood out of his body, his personalized Branch of Sin was never shown.

Differences between Manga and Anime

 * Akiyama originally survived the prison break but in the anime, Akiyama was immediately shot by Genkaku's machine guns and then dies while protecting Ganta from an Undertaker.
 * Akiyama is then shown escaping on the ship in the anime, however, it seems that his role is filled by Endō.