Dr. Eisenstein Husbando

Dr. Eisenstein, known in Japan as Dr. Allbert Zweinstein, is a ten time Nobel award-winning German physicist, specialized in Duel physics, with an IQ of 173. He is most famous for his quantum duel theory. Eisenstein arrives at Duel Academy under Prince Ojin's request and is sent by Sartorius to eliminate Jaden and retrieve his key to the mind control satellite although his underestimation of the young Duelist's tactics results in his failure. Bastion idolizes him for his unified theory of the world constituting a "beautiful space" and calls him a "god". He returns during the third year to communicate with those trapped in the other world, informing them that the key to their escape is to send Jesse's "Rainbow Dragon" card through a wormhole to link both dimensions. His last name, in both the English and Japanese versions of the anime, is a pun on the name of real-world-famous scientist Albert Einstein and as such is based on him in voice, therefore he speaks with a German accent. Jaden continuously mispronounces his name, in a parody of "The Young Frankenstein".