Aceman

Aceman is an fictional anime-hero in the universe of Deadman Wonderland. Ganta and Shiro were a big fan of him and they used to reenact his fighting scenes. Sometimes when Shiro saves Ganta, she impersonates Aceman by saying: "Aceman is here!". His trademarkfeature is his long attack names (ex. "Super Ultra Delicious Dynamite Kraken Gaki Special Atomic Bomber Spiral Core Poisoned ... Punch!"), which Ganta and Shiro were very fond of.

10 years in the past, when Ganta and Shiro were still in living in the hospital, Ganta wanted to play with Shiro and Aceman, but Shiro was in pain and slapped the doll out of Ganta's hand, breaking it. Ganta is sad and angry, and goes outside to eat his pudding alone. However, he is attacked by a mad dog and is in danger. Ganta is scared and calls out for Aceman. Shiro jumps on the dog and kicks him. Shiro makes a pose and says: ''"Have no fear. Aceman is here." ''After that, they repair the Aceman-doll and eat the pudding together.