Professor Nichols was a respected scientist living in Gotham City who developed a means of displacing physical bodies into the time stream by way of hypnosis. His procedure earned him the attention of Gotham's resident crime fighters, Batman and Robin, who often relied upon the Professor's genius in order to solve crimes involving time travel. Besides Batman and Robin, Professor Nichols used his technique to send various people back in time including himself.
After years of experimentation, Nichols made a scientific breakthrough when he actually developed a Time Machine. No longer requiring the power of hypnosis to accomplish his goals, he could now transmit bodies of matter backwards and forward through time with his new invention.
- This version of Carter Nichols, including all history and corresponding appearances, was erased from existence following the collapse of the original Multiverse in the 1985–86 Crisis on Infinite Earths limited series. Even though versions of the character may have since appeared, this information does not apply to those versions.
- 28 Appearances of Carter Nichols (Earth-Two)
- 2 Images featuring Carter Nichols (Earth-Two)
- Quotations by or about Carter Nichols (Earth-Two)
- Character Gallery: Carter Nichols (Earth-Two)