In 2296, Dr. Leonard McCoy was believed by the Romulans under Centurion Ruanek to be a war criminal who earned the name "Bones" for his experiments on prisoners' bone marrow. McCoy's reaction to hearing this was, "The name's McCoy, not Mengele!" (TOS novel: Vulcan's Forge)
Cardassian doctor Crell Moset was compared to Mengele for his experimentations on Bajorans during the Cardassian Occupation of Bajor. (DS9 - Worlds of Star Trek: Deep Space Nine novel: Andor: Paradigm)
- Star Trek: Deep Space Nine Companion notes the episode "Wrongs Darker Than Death or Night" had originally been conceived as being about a Mengele-like Cardassian doctor during the Occupation. Such a character was later established in VOY episode "Nothing Human".
|Nazis in Hitler's Germany||Hermann Göring • Grün • Adolf Hitler • Josef Mengele • unnamed Humans|
|Vosk's Na'kuhl Nazis||Ghrath • Kraul • Vosk • unnamed Na'kuhl|
|Ekosian Nazis||Daras • Eneg • John Gill • Melakon • unnamed Ekosians|
|Hirogen Nazis||Karr • Turanj • unnamed Hirogen|