An animated adaptation of the ''Comicbook/{{Hellboy}}'' comicbook series. They're a distinct [[AlternateContinuity continuity]], closer in spirit to the comics, but they feature actors (Creator/RonPerlman, Creator/SelmaBlair, Creator/DougJones, and Creator/JohnHurt) reprising their roles from [[Film/{{Hellboy}} the live-action film series]], along with the addition of [[Series/{{Frasier}} Peri Gilpin]] as Kate Corrigan.

!!''Sword of Storms''
Japanese folklorist Professor Sakai opens a forbidden scroll and becomes possessed by demons. While investigating Sakai's disappearance with a BPRD team (including folklorist Kate Corrigan), Hellboy touches a samurai sword left behind at the crime scene, and is suddenly transported into a MagicalLand based on Myth/JapaneseMythology. There, Hellboy learns that the storm demons Thunder and Lightning are sealed within the sword. If freed, Thunder and Lightning will unleash a storm capable of loosing the dragon Ogdru Jahad and all its offspring, bringing about the end of the world. Hellboy also confronts a series of ''youkai'' (directed by the demon-possessed Sakai), nearly all of them intent on breaking the sword and freeing the storm demons.

Meanwhile, Kate Corrigan attempts to solve the mystery of Hellboy's disappearance, as massive storms begin forming (due to the weakening of Thunder and Lightning's prison) and the first wave of "dragons" are freed. Liz Sherman and Abe Sapien become trapped on a deserted ocean island, and must fight one of these dragons.

It's worth noting that the scene where Hellboy meets a group of [[OurVampiresAreDifferent nukekubi]] is adapted almost verbatim from the one-shot comic "Heads", which Mike Mignola cited as one of his favorite ''Hellboy'' stories.

!!''Blood and Iron''
Hotel mogul Oliver Trombolt requests that the BPRD investigate the supposed haunting of a house he's renovating into a resort. In spite of the fact that Trombolt is clearly doing this as a publicity stunt, Professor Bruttenholm takes an interest in the case and suspects that something genuinely supernatural is occurring. Bruttenholm leads a field team, including Hellboy, Liz Sherman, and Abe Sapien, to investigate.

It soon becomes clear that the hotel truly is haunted... by the victims of Erzsebet Ondrushko, a countess who, decades ago, sold her soul to the witch-goddess Hecate, bathed in the blood of innocents, and was eventually killed by Bruttenholm himself. The BPRD team is assaulted by harpies, hell-hounds, and a werewolf, all servants of Ondrushko intent on raising their vampire mistress from the dead. Hecate herself takes an interest in the proceedings, using them as an opportunity to tempt Hellboy to join team evil.

The ''Blood And Iron'' DVD also includes an AnimatedAdaptation of the comics' "The Iron Shoes" story. In addition to the two films, several mini-comics were set in the ''Animated'' continuity. [[WhatCouldHaveBeen A third film (''The Phantom Claw'', the debut of Lobster Johnson) was planned but never came to fruition.]]
!!Provides examples of:
* AdaptationDistillation: ''Blood and Iron'' is "Wake the Devil" minus the bits that got adapted for the first movie- to wit, Rasputin and the Nazis. And with Elizabeth Bathory replacing Giurescu.
* AlternateContinuity
* AnimateInanimateObject: In ''Sword of Storms'', a group of tsukumogami attacks Kate Corrigan.
* AnachronicOrder: ''Blood and Iron'' starts off with a flashback, then a scene in the current time, and splices in several flashbacks out of order as well.
* BackFromTheDead: Erzsebet, through the items she used to torture her victims to death with.
* BatmanColdOpen: ''Sword of Storms'' opens with Hellboy, Liz Sherman, and Abe Sapien taking down some kind of giant bat-monster (presumably Camazotz, the Mayan bat-god.) ''Blood and Iron'' starts with Hellboy and Abe Sapien taking down what seems to be a cybernetic Minotaur.
* TheBeastMaster: Countess Erzsebet controls several demonic wolves.
* BiggerBad: Hecate in ''Blood and Iron''.
* BloodBath: In ''Blood and Iron'', Erzsebet Ondrushko (who's basically [[http://en.wikipedia.org/wiki/Elizabeth_Bathory Elizabeth Bathory]] under a slightly different name) bathed in blood to preserve her youth.
* BloodyHandprint: In Blood and Iron, a number of Ghosts collect at a window, Abe cannot see them, but when he turns around, he does see dozens of bloody hand-prints where their hands were.
* ChekhovsGun: The hip flask in ''Blood and Iron''. And the room the Werewolf kicks Hellboy into has a very obvious set of deer antlers on the wall.
* CoDragons: The [[spoiler: Harpy]] Sisters in ''Blood and Iron''.
* CruelAndUnusualDeath: In Professor Bruttenholm's flashback at the beginning of''Blood and Iron'', an unlucky RedShirt gets drained of blood courtesy of Erszebet. Two others are EatenAlive by the aforementioned demonic wolves shortly afterwards, [[Main/SoundOnlyDeath though mercifully offscreen.]]
* DarkIsNotEvil: The Ghosts in ''Blood and Iron''.
* DemonicPossession: Professor Sakai is on the receiving end by two Youkai, and the longer he's under their spell, the more monstrous he becomes.
* {{Expy}}: In ''Blood and Iron'', Oliver Trombolt bears a rather striking resemblance to [[WesternAnimation/{{Gargoyles}} David Xanatos]], except he is nowhere near as big a MagnificentBastard.
* FanService: Erzsebet having a BloodBath naked, going from monster to young lady, rubbing herself and moaning in slight pleasure.
* FanDisservice: When she undergoes the results of the [[spoiler: tampered bath]] and returns to monster form.
* GhostlyGoals: The Ghosts in ''Blood and Iron'' wish to be avenged. The Samurai's wife is waiting for her husband to return.
* HolyBurnsEvil: Only if the person believes in the holy though. Unfortunately, father Lupescu lost his...
* HolyHandGrenade: In ''Blood and Iron'', the BPRD successfully weaponizes holy water to use against vampires.
* HonorBeforeReason: The Japanese daimyo in ''Sword of Storms'', to the point of killing his own daughter to keep his promise to the demons Thunder and Lightning.
* HopeSpot: In ''Blood and Iron'', the newly revived Erzsebet closes in on Bruttenholm. Hellboy appears for what looks like a BigDamnHeroes moment, only to get pulled underground by Hecate.
* {{Kappa}}: HB fights one of them in ''Sword of Storms''.
* {{Kitsune}}: One of these guides HB in ''Sword of Storms''.
* LikeBrotherAndSister: Rather than being portrayed as love interests like they were in the live-action films, Liz and Hellboy are portrayed as having more of a sibling-like relationship, which is actually more in-line with how the original comics portray them.
* MoodWhiplash: In ''Blood and Iron'' after a climactic moment between Bruttenhulm and Countess Ondrushko, and a sad scene with the ghosts of the victims, the next scene in the film is Hellboy climbing out of a hole entangled in a giant snake and bashing its head into the floor.
* MonsterMash: In ''Blood and Iron''. Harpies, wolves, and a werewolf, all cooperating under the orders of a vampire.
* MundaneUtility: Liz uses her powers to heat up coffee.
* NoodleIncident: Hellboy, Abe, and Liz often talk about previous unseen adventures.
* OffWithHerHead: In ''Sword of Storms'', how the daimyo's daughter died.
* OurDragonsAreDifferent: In ''Sword of Storms'', "dragon" is apparently a title rather than a species. The Ogdru Jahad are referred to as "the dragon" (and the viewer never sees what they look like[[note]]in the original comics, the Ogdru Jahad actually do appear reptilian, while in the live-action films they're depicted as a mix of crustacean and cephalopod features[[/note]]), and their offspring range from humanoid ogres with thunder powers to squishy, underwater tentacle monsters.
* OurVampiresAreDifferent: Erzsebet sold her soul to Hecate, the Witch Queen. She's in total monster form unless she's bathed in blood in which case it works as a FountainOfYouth for her. She does feed, but it's the bathing that's shown to be her rejuvenation.
* PowerIncontinence: Liz hasn't got her fire powers fully under control yet, and needs to be calmed down by Hellboy or Abe.
* QuickNip: Subverted in ''Blood and Iron''. Bruttenholm, cornered by Ondrushko, reaches for his hip flask, prompting the vampire to snidely ask if he needs a drink to calm him in his last hours. [[spoiler:The flask is actually filled with holy water, which he flings at the vampire.]]
* RedShirts: Unnamed BPRD agents have a rather low life expectancy.
* ReluctantHero: Liz, due to her PowerIncontinence.
* TheRenfield: Father Lupescu turns into a mild version of this.
* RetiredBadass: Bruttenholm, especially in '' Blood and Iron'' where he is responsible for taking down the BigBad. ''Twice''.
* ShoutOut:
** Professor Sakai is a respectful tribute to Stan Sakai, the creator of Hellboy's Dark Horse [[IncrediblyLamePun stablemate]] [[ComicBook/UsagiYojimbo Miyamoto Usagi]].
** In ''Sword of Storms'': "Holy mother, [[Film/ANewHope look at the size of that thing!]]"
* RoleReprisal: As noted above, Ron Perlman, Selma Blair, Doug Jones, and John Hurt reprise their respective roles from [[Film/{{Hellboy}} the live-action film series]] as Hellboy, Liz Sherman, Abe Sapien, and Professor Bruttenholm. In fact, as the movies were released before ''The Golden Army'', this was the first time Jones's own voice was heard as Abe (having been dubbed over by [[Series/{{Frasier}} David Hyde Pierce]] in the first movie). The only exception besides Pierce is Jeffrey Tambor as Tom Manning, having been replaced by Creator/JimCummings.
* SparedByTheAdaptation:
** Even compared to his counterpart in the live-action movies, Professor Bruttenholm. He survives the events of ''Blood and Iron''.
** Also apparently Scott Clark, the Nick-Fury-looking BPRD agent from the beginning of ''Blood and Iron'', who dies in his first appearance in the comics (though it's still possible he died while off on his B-mission this time around).
* TimmStyle
* TopHeavyGuy: HB has a massive upper body and normal human-sized legs.
* {{Youkai}}: Besides the aforementioned kitsune and kappa, in ''Sword of Storms'' HB encounters rokurokubi, nukekubi, and jorogumo. Meanwhile, Kate Corrigan gets attacked by tsukumogami.