History of character has not yet been written.
Machine that extracts memories from people, leaving them with amnesia
- This version of the Extractor, 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.
- Enemy of Lois Lane
- The Extractor's word balloons were drawn with dashed lines and mixed-case lettering, presumably to indicate that he was always whispering.
- 3 Appearances of Otto Müller (Earth-One)
- 1 Images featuring Otto Müller (Earth-One)
- Quotations by or about Otto Müller (Earth-One)
- Character Gallery: Otto Müller (Earth-One)
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