These anime scientists have devoted most of their life to research, whether it’s medicine and technology, or more obscure fields like time travel and immortality. They are usually dressed in a white lab coat and glasses 24/7, or something equally conspicuous that still makes them stick out like a sore thumb.
On this list take a look at Top mad scientist in anime 


10. Nina Einstein  

(Code geass)


After her friend and object of affection, Princess Euphemia, dies, Nina becomes completely unhinged. She is then recruited by Brittania's research facility. Obsessed with killing Zero and his Black Knights to avenge Euphemia. 




9. The Doctor  (Hellsing)


The Doctor is credited with the creation of the Nazi vampire army and the cat-boy Schrodinger, an esteemed warrant officer in the military. Using the dead body of Mina Harker, the Doctor began his research into vampire conversion, his efforts put into practice with the use of a thousand volunteers from the Nazi army. 




8. Dr. Akihiro Kanou  

(Tokyo Ghoul)


The tragedy that is Kaneki's transformation into an artificial half-ghoul is all the fault of Dr. Kanou. It is stated that Kaneki is the first of his experiments to really work, implying there were countless sacrifices to achieving this goal. Aligning himself with the terrorist ghoul group Aogiri Tree




7. Dr. Shou Tucker  

(Full Metal Alchemist)


Tucker was always looking for ways to push science to its boundaries. he sacrificed not only his wife, but his young daughter Nina and family dog Alexander to achieving his aims of a talking chimera. 




6. Zoe Hange  (Attack On Titan)


Hange displays some compassion towards them, providing her test subjects with names and mourning their loss when they are killed. She becomes very interested in Eren when it is revealed he can shift into a Titan, subsequently devoting her time to understanding how this is possible. 




5. Caesar Clown  (One Piece)


Caesar Clown is a fanatic developer of any weapon that causes immense damage, wheeling and dealing his creations with like-minded individuals. He has no ethical boundaries, even using children and his own subordinates as test subjects for his experiments, which include poisonous gas and addictive drugs. He has no regard for life, which would explain the very large bounty placed on his head. 




4. Szayelaporro  (Bleach)


Szayel Aporro Granz was a mad scientist and the Eighth Espada within Sōsuke Aizen's military. He believed he was the perfect life form.




3. Rintaro Okabe  (Steins;Gate)


He is a self-asserted mad scientist. He is probably the most morally sound individual on this list, prioritizing the lives of his loved ones over scientific achievement. He was able to shift through time lines again and again.




2. Orochimaru  (Naruto)


Orochimaru is a mad scientist through and through. Attempting to achieve eternal life so he can discover all of the world's secrets, he sacrifices thousands of lives for the sake of testing his abilities and discovering hidden forms of power. 




1. Mayuri Kurotsuchi  (Bleach)


Kurotsuchi serves the role of coming up with new inventions and gadgets in Soul Society. Mayuri's descent into total madness begins with his success in the Nemuri project, in which he manages to create new souls called Nemu. He subsequently creates artificial offspring, biological bombs.