* GirlShowGhetto: The novels have almost no female characters at all, because at the time they were written it was generally accepted that girls would read books with boy main characters, but not vice versa. The TV series tries to compensate, somewhat awkwardly.
** At one point in the first season, the three boys meet an entire family of girls, who all adore them and want to marry them, but the trio then leaves them behind.
** In season two, a few female members of the Freemen take part in the plan to join the Games, but are immediately killed off.
** Will and Beanpole encounter a couple of bridesmaids on their way to the Games, who are very eager to help the boys out, in exchange for a tumble!
** Female Games champions are also chosen to serve in the city, but immediately segregated from the boys and not seen again. It's stated that female city servants perform only "cooking, cleaning, and nursing".
* HarsherInHindsight: It's bad enough when we learn that Eloise's reward for winning the contest is to serve the Tripods in their City. It's even worse when we learn that she serves them [[spoiler: as a stuffed specimen.]]
* InferredHolocaust: Realistically speaking, the fate of Hans in ''The City of Gold and Lead''. He is alone and disabled on an island, that is NOT self-sufficient, with no means of traveling to the mainland. The Capped mainlanders have no reason to care about him or render assistance. It's painfully obvious that he will starve to death, and, given his expression as Will and Beanpole are leaving, he clearly knows it.
** There is one in the Prequel as well. It is heavily implied that when the second wave of Tripods were destroyed, the Trippies surrounding them were slaughtered as well.
* SerialNumbersFiledOff: The Tripods are inspired by the fighting machines from ''Literature/TheWarOfTheWorlds'', as is the appearance of the Masters as giant tentacled heads.