Another of Tezuka’s scientist and doctor characters, Makeru Butamo has made an appearance in many of his manga series.  However, unlike Dr. Ochanomizu and Dr. Hanamaru, who always have the good of science and mankind in mind, Makeru Butamo is frequently a conspirator, an ally of bad people, a taker of bribes, or simply pigheadedly wrong, and while he is rarely the source of any intentional evil, he is frequently responsible for it.

In Metropolis he is called Dr. Laughton (Dr. ロートン).

In the great city of Metropolis, severe community structures and prejudice dominate a world where humans and robots live together. Unrest and violence increase with each new day. 
Searching for the scientist Dr. Laughton, suspected to violate human rights by trading organs, the Japanese detective Shunsaku Ban and his nephew Kenichi arrive at Metropolis. In the scientist's laboratory, Kenichi discovers a girl without any memory of her past life. He decides to help her, so they run away together. His uncle follows him and penetrates the dark secrets of the city to find Duke Red, the man ruling from the shadows. Meanwhile, Kenichi desperately tries to protect the mysterious girl from the people hunting her. However, Duke Red and his adoptive son have their own deep reasons for chasing the girl. These reasons are connected to her true identity and the struggle for the domination of Metropolis... 
[Written by MAL Rewrite]

Passed away on August 29th, 2011 due to stomach cancer.

In the distant year 2003, Japan is a technological utopia, and robots are everywhere. One such robot, Tobio, was built by the brilliant Dr. Tenma to replace his dead son. But when it soon becomes apparent that Tobio is an imperfect copy of his departed child, Dr. Tenma throws him out. He is rescued from the scrap heap by the benevolent Professor Ochanomizu, a crusader for robot civil rights. Now the little robot, renamed Astro Boy, is given a mission to defend Japan and the world from all manner of sinister threats. Using his seven super-abilities and 100,000 horsepower worth of strength to battle evil, Astro hopes to set an example to the world of the good which all robots are capable of.

In a not-so-far-off future a beautiful, artifically created girl -- unaware of her non-human background -- searches for the non-existent parents she believes must exist, wandering alone in a world populated by humans and by the slave-driven robots who serve them. 
(Source: Dark Horse)

When nuclear testing creates mutated animals with amazing supernatural abilities, the world and its great superpowers are drawn into political conflict that could light the fuse for World War III. (Source: Dark Horse)

When a rogue planet approaches Earth, a team of scientists voyage to the world and discover a land out of the ancient past-a planet populated by dinosaurs! But a group of crooks has stowed away aboard the spacecraft, and the scientists must fight for their survival against both crooks and hungry monsters! (Source: Dark Horse)