* ActorAllusion - The Serpent Undead gets hit in the face with a ''taiyaki'' plate, leaving her face messed up; this was actually a RunningGag when the actress playing her was in the role of Wendinu in ''Series/NinpuuSentaiHurricaneger'' (but with less harmful implements like paint brushes, sooty explosions etc.).
* ContractualPurity: Around the time ''Blade'' first aired, there was a flap over the fact that Takayuki Tsubaki, who plays Kenzaki, had previously appeared in a gay porn film. For a while some fans speculated that he would get [[ChuckCunninghamSyndrome quietly shuffled out of existence]], but the fact that Tsubaki returned to play Kenzaki in the final episodes of ''Series/KamenRiderDecade'' and again for ''VideoGame/KamenRiderClimaxHeroes'' proved the fears were baseless.
* FanNickname: [[spoiler:Fans on both sides of the Pacific refer to Kenzaki's unseen Joker form as the Navy Joker, after the primary color of the Blade suit. The S.I.C saga DID show a Joker form for him, but [[{{Jossed}} it was just the same color as Hajime's]]. Most prefer the Navy Joker.]]
* WhatCouldHaveBeen - Each of the 52 normal Undead is pretty much this. Each had the chance to be the one whose species could've ruled the Earth, the Human Undead just managed to win out. This includes lions, tigers, spiders, grasshoppers, and even some species of ''plants''. Yeah, Orchids could've ruled the world.

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