In the original manga, Gesicht's name was Gerhart, and in the 1980's anime his name was Zeron.The case becomes more puzzling when evidence suggests a robot is responsible for the murders, the first one in eight years. In the manga's plot in his attempts to solve the case of a string of robot and human deaths. He is also shown with wife named Helena, also another big difference is that this version he along with his wife and the other robots in the story are given a human appearance.

His body is made out of an alloy called 'Zeronium', and he is capable of firing a devastating blast using the alloy as shell. In a remake created by Naoki Ursawa, Gesicht's role in the World's Greatest Robot story was expanded upon as he is depicted as humanoid detective. Naoki Urasawa & Takashi Nagasaki Illustrated by Naoki Urasawa Translated by Jared Cook & Frederick. In the 1960s anime, Gesicht is shown to be able to fly. He has super strength, is able to tunnel underground, and can jump several meters in the air at fast speeds.There is a large assortment of laser guns in Gesicht's shoulder and abdominal sections, which he can fire at a target by merely flexing his arms. Gesicht's zirconium body is extremely sturdy, and it makes him impervious to gunshots and extreme energy levels.

Gesicht's metal body indeed helps him withstand the electricity from Pluto's horns, but Pluto splits his horns while Gesicht is holding onto them, tearing him in half. Gesicht attempts to approach Pluto with warrant papers like a regular detective, but the two have no other choice but to fight. With Astro/Atom 's official birth date of Apapproaching, Urasawa was initially going to do a limited or one-off manga in celebration. Before he can go out to find and arrest Pluto, he is visited by Pluto at his own home. Naoki Urasawa and Takashi Nagasaki began Pluto after over a year of negotiating to get the rights to adapt Osamu Tezuka's Astro Boy. In both the manga and 1980 series, Gesicht appears in the Greatest Robots arc.

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