David O'Neil

"Hey, while you're out, could you just snap a picture of Rose smiling for me?"

{{Character 1|title1=David O'Neil|image1=|full_name=David O'Neil|nicknames=Dave, Davey (Dayvey), Neil (Neill), Bitch, liar, cheater, asshole (Callix), Sweetheart, sweetie (Rose), Baby, hun (Annabelle)|preferred_nicknames=Dave, Neil (Neill)|biological_age=24|age=24|birthplace=Berlin, Germany|mental_age=30|biological_gendersex=Male|gender=Male|sexuality=Bisexual|pronouns=He, Him/They, Them|ethnicity=German|race=Cursed Zombie

Human (Formerly)|age_appearance=17|skin_color=Porcelain|hair_color=Black|hair_length=Short|hair_style=|eye_color=Green|likes=Rose, Callix Channing, Murder, Violence, Chaos, The SSS, Battles, Knives,, Torture, Success|dislikes=The possibility of Rose hating him, Sparing opponents, Failure, Children, Collin Youno, Jessie Vyper, Annabelle Flanes|phobia(s)=Thanatophobia|blood_type=|spirit_animal=Alpaca|favorite_animal=Butterflies|favorite_food=Blutwurst|favorite_drink=Water, or Radler|favorite_snack=Lollipops|favorite_color=Lime Green|theme_song(s)=Killer In The Mirror, by Set It Off

I Can't Decide, by Scissor Sisters

I Can't Fix You, by Caleb Hyles

Murder Melody, by Curt To Follow

Hypnotized, by Set It Off

Nicotine, by Panic! At The Disco|status=Resurrected|occupation=Scientist at the SSS (Formerly)

Leader of the alliance

Experiment of the SSS|affiliations=The SSS

The Alliance|mother=Unknown|father=Unknown|sibling(s)=Fitz Beau|friends=Jeremiah, Brooklyn McHugh, Samuel Claude, Chord Flanes, Ikon Hendrix, Midnight, Raven|enemies=Collin Youno, Jessie Vyper, Annabelle Flanes|others=Rose, Annabelle Flanes {Ex's), Tag O'Neil|triggers=Children, Seeing Rose with Collin|voice_claim=Yūki Kaji (Japanese)

Corey Hartzog (English)|birth_stonezodiac=Cancer|titles=Rose's Ex-boyfriend (SSS experiments), The Cursed Zombie (The Alliance members)|height=5'5" 1/2|weight=128 lbs|trauma(s)=Death, Rape|rivals=Collin Youno, Callix Channing, Jessie Vyper, Annabelle Flanes}}

David O'Neil, sometimes spelled David O'Neill, is a former scientist of the SSS before his death at the hands of Rose. He had apparently been cheating on Rose with Annabelle, before they both ended up finding out about it. After his death, he came back as a zombie. He is the leader of The Alliance, known as the Cursed Zombie among them.

Appearance
David is a skinny, though fit boy with black hair and green eyes. He has short, messy black hair. He has a fringe that splits twice in the middle, and side bangs that curl inwards to define his face. His common attire is a white collared shirt and thin black suspended trousers, occasionally with a black bow tied around his shirts collar. However, his usual work attire includes; a white dress shirt with a black ribbon bow laced around its collar, high waisted black shorts, kneecap-length black socks, boots, and a black jacket with golden embroidery lines in his jackets lapels, jackets collar, boots, and shorts.

Personality
In his first few appearances, David was originally one of the protagonists, acting very sweet and respectable during the day - though with Rose, he often acted meekly or seemed unsure of himself due to his strong feelings for her and the fear of embarrassment, referring to her as "Rose-san," or, "Senpai," in an affectionate manner, and clinging to her more than anyone. Despite being a likable person, he remained in his small friend group, nor did he attempt to befriend others - he admits to Jeremiah that he does this via having sundown syndrome, not wanting to explain his strange behavior during the night. David often shut down around Callix, likely afraid that he'd tell others about his disorder.

During the night, David seemed to forget of his day life, or— quite literally become another person, doing unspeakable things such as cheating on Rose, torturing the experiments, massacring New York civilians, and numerous other things, though he isn't aware of his actions during the night. This is shown when Callix finds him passed out in an alleyway, bloodied with a kitchen knife inches away from him. He later discusses this with David, at first, assuming he was lying about not knowing of his previous actions, though comes to the realization about his said disorder, and explains this to David, who simply asks for proof of this, which he receives after being shown the photo of himself, passed out in an alleyway, indeed bloodied and having murdered someone, likely multiple people.

Despite loving Rose— dating her wasn't healthy for him. He often felt insecure, though not because of her, because of those around her. The fear of Rose loving someone else, or leaving him for someone better, seemed to make David anxious or upset. He eventually becomes very controlling of her, stopping her from talking to any other males around her, and females, such as Jessie or Fiona as well. Sometimes, he'd even say words he didn't even realize he knew. Nonetheless, David often apologized over and over for his actions, and for likely embarrassing both Rose and himself. Most of the time, he acted this way around others, as if claiming Rose as his, and slowly making his peers fear him.

Only after dying David remembered his actions during the night, realizing that he likely formed a split personality as well. After his resurrection, David's split personality reformed into one, affecting his original personality and secondary one drastically.

David often acts unfazed; like he doesn't care, and has become very observant of his surroundings. Minor things from his original personalities seemed to have stuck with him, such as his brutality with his opponents, his insecurity and meekness when with or thinking of Rose, and thus, he's become obsessed with getting Rose back no matter the cost.

Despite seeming as if he could care less, there are times where David acts in psychotic, sadistic ways. For instance, after massacring various opponents, he laughs maniacally, swinging one of their heads around in his hand, as if he was showing it off. Another minor example is his small smirks after murdering someone. It should be noted that none of his opponents are spared unless he believes they should be, no matter who they are.

David often kills with no goal; just for the sake of doing so, and is considered heartless by many for this. He finds joy in ending other's lives, especially when he has no clue who they are. He has almost no boundaries, though won't harm children or Rose, for obvious reasons. When not having murdered someone for a minor amount of time, there's a possibility David would become manic— acting anxious, like it's a craving of his, or drugs.

Powers and Abilities

 * Anatomical Liberation: David can split his own body apart into pieces and control the said pieces however he wishes, by levitating them away from his body and using them as they were connected to him. David is immune to cutting and being slashed because he can just pull his body back together again. He can also remove his own organs without dying and will neither bleed to death nor die if his brain or heart is removed.
 * Body Part Substitution: David can replace parts of his body with same organs from outside sources, gaining the powers they'd had before the connecting, such as an eye with night vision would give the ability to see in the dark, a hand taken from a plasma blaster could allow him to fire plasma blasts from that hand. Replacements physically adjust as if it were natural, leaving no scar or indication that it isn't his body part.
 * Redundant Physiology: David lacks any physical weaknesses of an organic, living body including the need for rest, sustenance or other physical requirements. He does not feel pain and cannot be poisoned or get ill.
 * Enhanced Mauling: David possesses enhanced skills to rip his opponents to shreds with just pure force alone or a single powerful strike.
 * Fear Inducement: David can evoke and increase fear and horror in others causing the target’s brain to release fear-inducing chemicals. The target’s perception may be altered, causing them to see their environment as ominous and David as dark and foreboding, or even as a monster.
 * Feral Mind: David can tap into a primal instinctive state of mind, which can release an unstoppable rage that allows him to perform in vastly increased capacity, taking and inflicting damage that he couldn't or wouldn't in his normal state. David is not only to do this via being a Cursed Zombie, but also having sundown syndrome.
 * Nigh Immortality: David possesses nigh immortality: an endless lifespan, as he can never die, never age, and can shrug off virtually any kind of physical damage.
 * Infection Empowerment: David's powers are all derived from being infected by viruses and/or diseases.
 * Killing Instinct: David possesses the capability that enables him to be the "ultimate killing machine". He has instincts to kill by any means and in the most effective ways possible, use anything at hand to do so and, have no mental/emotional issues or moral dilemmas either before, during or after the deed.
 * Resurrection: David can bring himself back to life. While this power is similar to necromancy in that it raises the dead, resurrection is different in that it fully restores his body, mind, and soul to full health while reanimation only creates undead with varying cognitive function.

Trivia

 * David is a common masculine given name of Biblical Hebrew origin, as King David is a figure of central importance in the Hebrew Bible and in Christian, Sabbatean Judaism, and Islamic religious tradition.
 * The O'Neill dynasty is a lineage of Irish Gaelic origin, that held prominent positions and titles in Ireland and elsewhere. As Kings of Cenél nEógain, they are historically the most prominent family of the Northern Uí Néill, along with the O'Donnell and O'Doherty.
 * David is the current leader of the organization, "The Alliance,"
 * David likely studied psychology before deciding to become a scientist; a minor explanation as to how he can easily detect when someone is lying.
 * David's parents were scientists. He states that it was one of his inspirations to become one as well.
 * David keeps his phone on silent, and often ignores calls, even important ones.
 * David's hair was dyed from blonde to black.
 * David's information was rewritten approximately three times until previously. His personality was changed drastically since then.

Quotes

 * (To Brooklyn McHugh) "Mhm, mhm... listen, just kill whoever you see fit, we should narrow down the numbers of weaklings here."
 * (To Brooklyn McHugh) "Look, their head! It looks so silly, their eyes are open!"
 * "There are so many things alive, how do I stop them all from breathing?"
 * (To Midnight) "I see. Mhm. Of course. Totally. Oh, what were you saying?"
 * (To Midnight) "How much do you think your remains would cost?"
 * (To Brooklyn McHugh) "If I see that furry demon once more, both of you are going in an incinerator!"
 * "Kiss my blade."
 * (To Brooklyn McHugh) "I don't need your protection... I can handle myself just fine."
 * (To Rose) "I know I don't have the right to ask this, but please, just spend the day with me. Just one more time, I want to feel like I'm yours one more time, and after, you can kill me, or whatever you want."
 * (To Brooklyn McHugh) "Find Oliver, get to Elizabeth, and get me Rose."
 * "When it gets dark, I can't control myself."
 * (To Zachari Dougherty) "I see... so, for you, all possible outcomes are bad. All roads lead to nothing."
 * (To Aom Amemiya) "Aw, you have wings... pfft, fly high little butterfly."
 * "Hey, die faster, would ya?"