Mighty Atom
From Tardis Wiki, the free Doctor Who reference
"Mighty Atom" is a title based upon conjecture.
Check the behind the scenes section, the revision history and discussion page for additional comments on this article's title.
In 17th century Japan, a cluster of nano-bots took the form of a character, who was known to be a fantasy for children. (COMIC: The Road to Hell)
Behind the scenes
While not named within the story, the vision of the character, and later, the form a cluster of nano-bots took, was obviously meant to be Mighty Atom, known as Astro Boy to Western audiences.