* CompleteMonster: Reinhard Heydrich and Dr. Seyss-Inquart, although neither of them appear in person.
** In fact, the book ends right before Wegener arrives at the SS headquarters to meet Heydrich on the eve of his state coup.
* CultClassic: In the alternate history fandom.
* FridgeBrilliance: Large parts of the narrative are written in a strange stilted way, almost like a formal pidgin English with lots of sentence fragments. It may seem annoying to the reader at first, but there's a reason for it - this is how the Japanese speak, and the narrator of those chapters, Robert Childan, imitates the speech of his masters. The farther away we get from the Japanese sphere of influence (in Juliana's chapters), the more normal-sounding American English the narrative becomes.
** Imperial Japanese occupation in the book is less oppressive and racist than it ever was during the war, to the point where it may seem as if the book is whitewashing Japanese atrocities. But the book is not set during the war. It is set in an alternate 1962, at which point almost two decades have passed since the war and Japanese culture has shifted and is beginning to liberalize -- just as the USA's culture did in real life.
* NauseaFuel: The Nazi doctors inventing new uses for dead bodies, such as using the joint of the big toe as a mechanism for a lighter.
* NightmareFuel: Many things the Nazis are doing, such as the massive genocide of blacks in Africa.