Name: Sir John Nienstine
Other Names: Dr. Nienstine; Dr. John Nienstine; Sir John
First Appearance: Police Comics #4 (Nov. 1941): "Dr. Scratch of Demon Hill"
Creators: Vernon Henkel
Number of Appearances: 1
Defended or Helped by: The Sword
Note: intended target of Dr. Scratch's plan to harvest brains
This character is heavily based on Albert Einstein.