YMMV: Doc Savage
- Fridge Logic: Didn't Adolf Hitler in disguise hit on you at the start of this adventure?
- Marty Stu: Doc has some characteristics of this, being a perfect physical specimen, incredibly brilliant, unbelievably badass and so on, and so forth. But he's hopelessly inept with women.
- Older Than They Think: Doc's Arctic "Fortress Of Solitude". While it may appear to be a rip-off of Superman's, that version is lifted, name and location included, from the very first Doc Savage story, published in 1933. Supes first got his retreat hang-out in 1938, it was located in a mountain cave outside of Metropolis, and it was called his "Secret Citadel". The Arctic version and the name "Fortress of Solitude" wasn't used in the Superman stories until 1958.
- Science Marches On:
- The brain surgery to which criminals are subjected at the "Crime College". At the time the books were written, it was commonly believed, including by psychologists and neurologists, that career criminals suffered from a treatable malformation of the brain. See Values Dissonance below.
- In The Land of Terror (1933), someone asks Doc about the theory that we could get lots of energy by splitting the atom. Doc explains that this has just been discredited, as recent work suggests you have to put in as much energy as you get out.
- Values Dissonance: The "Crime College", where captured crooks are given brain surgery to wipe out criminal impulses and retrained into productive law-abiding citizens, leaves a bad taste in the mouths of many modern readers. Some later authors have even suggested that Doc was lobotomising the crooks.