So your vampire hero or wolfman character is plagued by guilt, crippled by morals, and wants nothing more than to be mortal again. Naturally you need a foil, and that's where the Fully Embraced Fiend comes in. Unlike the hero, this character is happy being a monster — they like the immortality and the power, and has no problem putting the bite on anybody who doesn't like it.
Hey, just Be Yourself, right?
This character isn't necessarily all that evil; in fact, s/he is often a friend of the hero, a source of (im)moral support and often a source of news and information on other fiends. They also won't hesitate to snark the hero on his lack of vampire pride or similar. These fiends usually have their own substantial, dedicated portion of fans among the audience.
However they still will tend to get these fans by the Sociopathic Hero or Magnificent Bastard route with a sort of sociopathy in how they view everybody else, moralistic characters being gutless morons who were afraid to take risks. They probably didn't start out like this, having gone through the Stages of Monster Grief before truly accepting their condition.
Vampire and werewolves, the sort of monster you can be turned into, are the typical target. If they are slightly evil they might be a Token Evil Teammate. Contrast with Transhuman Treachery where a character in the fight against such creatures gives in to the process that turns them into the enemy. Also contrast with Pro-Human Transhuman, where a character in the fight against such creatures resists the notion of superiority to humanity. Contrast with Monsters Anonymous, where the emphasis is on blending in with humanity... though the exact purpose to the blending in may vary.
- In Hellsing, the trope gets an interesting exploration - Alucard may be a gleefully sadistic, self-declared monstrous vampire, but he's still fighting for the good guys against his own kind. (Admittedly with rather more collateral damage than necessary, which he will point out to his superiors 'cause it's funny.) He berates other vampires for being weak, petty, boring and no fun to fight, while - in his own warped way - prodding his allies to test their convictions, sometimes to the point of being an Evil Mentor. As a monster who knows he's chosen to be a monster, he feels free to sneer at other monsters for failing to respect humankind, and will only ever concede defeat to someone truly human. And when the Worthy Opponent he genuinely believed would defeat him gave up humanity for more power, Alucard actually breaks down in utter disappointment and despair.
- In Nightwalker, Cain has been a vampire for so long he can't really remember ever being anything else. He's not trying to kill or defeat the protagonists, he's just trying to convince his old lover to come back to him.
- Inverted in Preacher - Cassidy (a main character who is a vampire) is (outwardly) Well-Adjusted; one flashback issue features him meeting a vampire who read too much Anne Rice. His monstrous nature comes more from his addiction to heroin and his abuse of women.
- This is Wolverine's relationship with Sabretooth, who's embraced his violent and feral instincts.
- José in Crimson. While his friend Alex Elder absolutely refuses to drink blood, being even disgusted with animal and donated blood, Joe is very content with being a vampire and feeds mostly on bad people like criminals and drug dealers. While cops and innocents are off-limits, he makes exception when he is extremely hungry.
- In the original Buffy the Vampire Slayer movie, Luke Perry's buddy quickly becomes one of these to the still mortal Perry's character. Once best buds, he tries to convince him to turn too after he passes on being FOOD.
- French Canadian comedy "Karmina 2" has Linda, whose husband was made a vampire in the original movie; she's extremely enthusiastic about becoming a vampire before being turned, tricks a friend into biting her because her husband thinks she's too unstable, bites him back to turn herself, and once she's turned revels in the whole thing.
- Lestat from Interview with the Vampire, as he teaches the protagonist to embrace being a vampire.
- Principal Lightwood from Nathaniel Keene tries to convince the protagonist to become this by tempting him with human blood. It's implied that he successfully did so with Merry Cross.
- Reg Shoe from Discworld would count, as he is a zombie who holds undead pride meetings. Subverted in that he is really just a regular guy who happens to drop bits of himself now and again, and his attempts to fight for undead rights are an outlet for his desire to be a social reformer. He later joins the City Watch.
- Both Carpe Jugulum (vampires) and The Fifth Elephant (werewolves) feature a similar two variations on this trope; an older Noble Demon patriarch who "plays by the rules" — that is, acts like they do in the traditional stories — and a sadistic, supremacist younger son who enjoys flaunting his power over humans and serves as the villain of the story. Both of these are foils to the Friendly Neighbourhood Vampires and werewolves we see coexisting more-or-less peacefully with humans in Ankh-Morpork, like Otto von Chriek and Sgt. Angua.
- Henry Fitzroy from the Blood Books series by Tanya Huff.
- Harry Potter gives us Fenrir Greyback, a cannibalistic werewolf with a taste for children — transformed or not. He is the polar opposite of Remus Lupin, who hates being a werewolf and whose biggest flaw by Word of God is that he just wants to be liked.
- By the end of The Dresden Files novel Turn Coat, Friendly Neighborhood Vampire Thomas seems to have given up and become one of these.
- And in Summer Knight, Changeling Meryl embraces her Fae half in the final battle, becoming a troll.
- Almost all the vampires in the Den of Shadows series except Christopher and Nissa are completely happy with being vampires.
- By the end of Blackout, Cal Leandros has (partially) become one of these. Though he accepts his Auphe side and indeed thinks of himself as more Auphe than human, he regards Niko as his Morality Chain and does his best to follow what his brother outlines as moral. Unless Niko is in danger. Then all bets are off.
- LaCroix from Forever Knight but not so much Janette, since she eventually becomes mortal through the love of a good man, implying some dissatisfaction with the Vampire life even if she never mentioned it to Nick.
- Josef Kostan, resident Deadpan Snarker and resulting Ensemble Dark Horse, in Moonlight.
- Coraline Duvall as well, especially in the flashbacks. Not so much after her return, or so she claims.
- Eric in True Blood who scoffs at Bill's drinking of the eponymous blood substitute and his remaining human tendencies.
- Most vampires in the series bother little with restraint.
- Herrick from Being Human (UK), who is always trying to get Mitchell to give up forsaking blood and get into a vampire world domination bid.
- Similarly Tully wanted to convince George to embrace "the wolf" and act animalisticly. Particularly disturbing considering the depiction of the werewolf curse was treated on many occasions like an STD being passed on and the turning bite being like a rape. Eventually George got rid of him when he acted violently against his loved ones.
- Buffy the Vampire Slayer:
- Angelus had no problem whatsoever adjusting to his vampirism. The more his time without a soul is revealed, the clearer it becomes - to the point that Angel, having a soul, admits that he misses the "clarity" of being a soulless monster.
- Veruca relishes in her werewolf side, believing it to be her true self and her human face just a disguise. She tries to get Oz to do the same.
- Monroe and his group in Season 8 share Veruca's views.
- In Season 6 Spike tries to take on this role for Buffy, convinced she Came Back Wrong after her death and resurrection. It turns out Buffy's just severely screwed up, and Spike's efforts to get her to embrace The Dark Side and run off with him only make things worse.
- Spike contrasts with Angel strongly in this regard. When he gets a soul it leads to insane ranting, self-mutilation and at least one Suicide by Cop attempt, but he never particularly angsts about being in a vampire body.
- On the fifth season of Angel, Spike generally enjoys being a vamp — even though he doesn't snack on humans, due to a combination of having a soul and most likely out of respect for Team Angel (though he'd never admit that).
- Although they usually only appear for one episode, many of the informants to the Sanctuary crew do this, especially Ashley, until her death.
- The Vampire Diaries: Vampires can actually shut off their feelings of guilt. This, along with living it up and making his brother's life a living Hell, is what Damon Salvatore does.
- It's implied that he doesn't shut them off all the way, probably so he can enjoy it more. Then at the end of season one he's apparently turned them back on.
- It's implied that this ability fades with age, so older vampires have either become true sociopaths, or they delude themselves into believing that it is permanent so that they can live with the guilt.
- Like in the Blood Books novels it's based on, Henry in Blood Ties embraces his vampiric nature. He seduces a girl every night to secretly snack on her while doing other stuff. He does give a speech to Vicki, including "someone has to die" in it. Coincidentally, the victim they are talking about is not dead, as Henry leads her to assume. He turned the girl. At the same time, Henry also has qualities of a Friendly Neighborhood Vampire.
- Before cancellation, the show only had five vampires on it: Henry, Christina (Henry's lover/maker), Christina's other fledgling (who hates her), the previously-mentioned girl, and a Spanish nun turned by Henry during the Inquisition in return for freeing him (he thought it was a gift).
- Erica is this to Sarah in My Babysitter's a Vampire.
- Once Upon a Time: A more morally ambiguous version than usual. Red initially has extreme self-hatred about being The Big Bad Wolf, with considerable justification since she accidentally killed her first boyfriend when transformed and mindless. Her mother is a Proud Warrior Race Girl who teaches her to accept her wolf side and remain sentient when she transforms, but turns out to hate all humans and kill them on sight. However, after Red discovers how evil her mother is and is forced to kill her to save Snow's life, Red doesn't reject her teachings and happily finds a middle way.
- iZombie has Season 1 Big Bad, Blaine DeBeers. While Liv hates having become a zombie and tries to make the most of her situation in a positive way, Blaine relishes his transformation, as it gives him the power he's always craved.
- Both Vampire: The Masquerade and Vampire: The Requiem feature a vampiric society that holds to the idea that you need to keep some measure of your Humanity, lest you fall to the Beast and become a mindless killer. Needless to say, their foils have other ideas. In Masquerade, the Sabbat is a society made up of vampires who believe they are superior to humanity, and have the right to rule over the "kine" as they wish (usually in a bloody and messy fashion). In Requiem, it's the covenant of Belial's Brood, who believe that the Beast is superior to paltry Humanity and perform atrocities to get closer to it.
- Promethean: The Created has the Centimani. Most Prometheans are on the Pilgrimage, a spiritual journey with the ultimate goal of becoming a human being and shedding the massive Blessed with Suck that comes with their existence. The Refinement of Flux, Centimani, teaches that Prometheans are more than human, that following the Pilgrimage is a foolish idea, and that a Promethean should embrace what they are and become as inhuman as they like. Which would be fine if it didn't involve enslaving Pandorans and hunting down your own kind to feed them to the things. (Interestingly, since Centimanus is a philosophy, not a group, there are actually Centimani who still follow the Pilgrimage. Their view of the path is that since there are monsters in men, one can learn about humanity by studying its antithesis.)
- Shin Megami Tensei:
- One of the possible endings for your player character, the Demi-Fiend, in Shin Megami Tensei III: Nocturne. At the very beginning of the game, a little boy (Lucifer) forcibly transforms you, giving you the body of a demon while letting you keep the soul of a human. Handy for creating an interesting narrative and not falling over the Bishonen Line. At the end of the game, after experiencing everything there is to see After the End, you get to decide if you want to want to complete the transformation and make your soul that of a demon's, becoming Lucifer's Dragon and taking the fight to God himself.
- An option for the Player Character in Devil Survivor: Overclocked during Naoya's 8th Day. Having finally awoken his power as the new King Of Bel, the player can now decide to completely abandon their human morality and slaughter everyone opposing them, giving in to their demonic soul and ultimately ending with taking over the world.
- In Blood Omen, Vorador serves as one to the newly risen Kain. Later on, Kain acts as this to Raziel.
- In Vampire: The Masquerade – Bloodlines:
- Smiling Jack is a relatively well-balanced version. He unapologetically enjoys blood-drinking and raising hell against anyone who tries to control him; but doesn't hurt people without cause, warns new vampires against losing their humanity, and offers mentorship and friendship without asking anything in return. For a four-hundred-year-old undead ex-pirate anarchist, he's surprisingly well-adjusted.
- "Gorgeous" Gary Golden, a Nosferatu, will express his disgust at a Toreador Player Character this way, suggesting that the Toreador are deluding themselves by trying to cover up their inherent monstrosity with "Paris fashions and pomp" and that, as one of the fallen and the dead, the player character should act like it.
- This is how Gaichû in Shadowrun Returns: Hong Kong views becoming a ghoul. While he'd prefer to be human, he knows there's no cure and ghoulification has granted him increased strength and stamina and also provided him with a whole new set of challenges to master, such as his new nature. It's implied his early acceptance of his new nature as a challenge to be overcome saved him from devolving into a mindless cannibal like most ghouls.
- Finas and Casimiro from Hanna Is Not a Boy's Name. They are quite used to being vampires, they have been for many years. They don't have particular side that they are on, they just do what's in their best interest and can be cordial (Finas keeps Cas in check) at times.
- This eventually happened to the protagonist of Zebra Girl. Sandra, after years of fighting against her transformed-into-a-demon nature, finally gives in to the dark side. After causing a great deal of trouble, she is sucked into an alternate dimension where she is forced to deal with being suddenly human again. How this all plays out it is yet to be seen.
- In The Order of the Stick, The newly-vampirized Durkon acting like this moments after being turned is so out of character that it convinces Belkar that he isn't really Durkon at all, especially since Durkon went from forgiving Belkar for not being able to save him to eagerly drinking Belkar's blood in minutes. As it turns out, Belkar is completely right.
- Owen Wright in Maggot Boy is a sapient zombie and a sadistic serial killer who alternates between offing random folks to sate his Horror Hunger and doing horrible things to people he personally dislikes.