- Alternative Character Interpretation: Louis usually comes across as The Ditz, but he could be Obfuscating Stupidity in order to avoid responsibility beyond his years, or simply because he knows no one will take him seriously anyway and he might as well not bother.
- This aspect of his character comes across strongly in "Rub-a-Dub Sub," where Louis goes fishing and one of Mazarin's men hooks a dead fish onto his hook so he'll catch something. During the scene, he acts confused, but later in the episode he acts annoyed and practically states outright that he knows exactly what they did.
- Ensemble Dark Horse: Judging by Youtube comments, King Louis, though sometimes out of Retroactive Recognition.
- Fanon: The official website's bio of Siroc identified him as a former slave, but this piece of information never appeared up in the show. The most popular fanon explaining Siroc's backstory — detailed in this fanfic — makes him Cardinal Mazarin's slave.
- Growing the Beard: The first two episodes played up the comedy with over-the-top situations, cheesy dialogue, and anachronistic references. Beginning with the third episode, the dialogue and acting noticeably improved, the plots focused more on fantasy and drama with a bit of comic relief, and the anachronisms were underplayed (with Siroc's role as the inventor becoming more about angst than comedy).
- Guilty Pleasure: For fans who find it So Bad, It's Good.
- Ham and Cheese: Much of the cast, to varying degrees. D'Artagnan starts off as this in the first couple of episodes, but mellows out after that.
- Shipping Goggles: Jacqueline/Siroc shippers interpret a few ambiguous facial expressions Siroc makes in "Da Vinci's Notebook" as evidence that he's in love with her.
YMMV / Young Blades