Crouching Moron, Hidden Badass: although we get to know him pretty well as a badass first, there is a certain amount of Mood Whiplash when Tom can change from being a bouncy overgrown man child to a cold hard killer with a stake pointed at someones chest in the space of about 5 seconds.
Big Brother Instinct: For Eve. He gives her to the Old Ones because they would protect her, and also chooses to became their servant to be with her.
Tom: Even McNair gave me a name, and he ate my parents.
Death Seeker: In the apocalyptic future Tom get himself killed in a cage fight 'cause he couldn't bear the burden of having killed some humans.
Determinator: Tom manages to run to the hotel from the nearby woods while transforming, without killing anyone. This is impressive enough, but he then enters the hotel and ignores Hal, which all instincts tell him to attack on sight, and tackles the werewolf Bobby into a hotel room. No other werewolf has managed to equal such an act of control.
He Cleans Up Nicely: In his hotel assistant manager uniform. Black suit and tie, red waistcoat: looking good.
Dirty Coward: Back in WW 1 he made one of his men give his blood to be part of the Trinity, instead of his own which resulted in it failing and the devil escaping
The Dreaded: One of the most feared and revered characters on the show.
Fish out of Water: Hal doesn't quite fit in with Annie and Tom to start with, but he slowly adjusts as he becomes closer to them.
They hit you with this in episode 2, when the very Fifties Hal and Pearl make a sharp contrast to the slightly tacky Seventies Disco Fabulous look of the house.
Friendly Neighbourhood Vampire: His current phase after 500 years of vice and murder. Deconstructed in that we see the ridiculous lengths and routine Hal goes to to stop himself attacking others, and that without his morality chains he goes out of control easily.
Genre Savvy: When Kirby threatens him to reveal his past, he tries to confess it before Kirby has the chance. He's also able to to recognize Yvonne as a succubus the moment it affects him.
When Hatch offers the housemates dream realities where they can be human, he has to take a different approach as Hal works out quickly that this is a trick. Hatch tells Hal that in this world he would live a human life, but in fact Hal would just die of a lance wound. Despite the fact that Hal is almost dead, Hatch still has to resort to distracting him with a fake Leo to prevent Hal from instantly rejecting his offer.
Good Old Ways: Hal feels acute nostalgia for the late medieval period. He mentions preferring the dowry system to modern dating.
Hates Being Touched: He's very uncomfortable when touched. His reaction to Annie hugging him is hilarious
Had Six Mommies: He was born in a brothel and never knew which of the six prostitutes was his biological mother. When they died, he mourned each one of them as if they were blood related.
Iconic Outfit: He always wears his shirts buttoned-up to the top.
I See Dead People: He's lived with a ghost for the past fifty years or so, and of course can see Annie.
Jekyll & Hyde: When Hal gets close to a switch between good and evil, he falls unconscious and flashes between them.
Enemy Within: Implying that Hal represses his violent tendencies to the point they're nearly a completely separate identity.
Kick the Son of a Bitch: He strangles the werewolf Larry after he takes advantage of Tom, steals the money he was saving for his father's tombstone and systematically destroys Tom's confidence. Hal finally goes over the edge when Larry deliberately provokes Hal into attacking him, and calls Alex a slag and Tom a retard.
Knife Nut: In his fight with Tom Mc Nair, Bad!Hal takes out a small knife and shows a great proficiency with it
Manly Tears: When Leo dies, when Kirby threatens to reveal his bloody past etc.
Nailed To The Wagon: Tom with Alex at the end of series 4 ties him to a chair to get him off blood again.
No Social Skills: He's a vampire, he has OCD, he's been out of society for more than fifty years, he thinks relaxing would end with him killing someone... he's very awkward around people. His attempt at flirting was no better than Tom's.
Odd Friendship: He and Tom are completely different personality-wise, but they're best friends, and Hal tells Tom that he is the best man he knows.
Off The Wagon: He enters half a decade of sobriety occasionally, then goes off the wagon and back to evil in a cycle.
Sherlock Scan: When he confronts a journalist who falsely reported that the Box Tunnel Murderer was a cannibal, he works out that she couldn't have been bribed as her expensive clothes are at least a year old, so she didn't need money. Furthermore her eyes are red and her fingers are stained from smoking, but she didn't have a smoker's usual wrinkled upper lip, so she's suffering recent stress. Therefore he worked out she's being threatened into doing it.
Super OCD: He's followed strict rules for the past 55 years to avoid drinking human blood, such as avoiding human contact, meditating and obsessively stacking dominoes and then taking the structure apart.
The Grovel: To Cutler to get him to stop his evil plan.
The Lad-ette: Has trouble talking to other women, loves sports, hates wearing dresses, and finds men easier to get along with. Lampshaded when Oliver states that he's "Never met a more un-lady like lady."
One of the Boys: Seems the case: Alex has three brothers and a father, and states that she knows everything about boys' interests.
Never Live It Down: In-universe. Alex is beyond pissed that Hal drank her blood, and keeps bringing it up.
Annie: See, you know the terms, you know how this works. I mean, do you know if I can channel it? Because I have been dying to pull that fridge out and clean behind it.
Adorkable: She can be just as squeaky and neurotic as George at times, when she's not delving into total Woobie status.
Berserk Button: You can insult Annie's fashion sense, or the house she lives in, but don't ever insult her tea.
Pearl: We'll need to start using a new brand of tea. That stuff you make always looks very anaemic.
Annie: There is nothing wrong with my tea.
Beware the Nice Ones: Annie is the sweetest person you could hope to meet, but she's something else whenever she gets angry.
Combo Platter Powers: She's easily the most powerful member of the main cast. Annie has telekinesis, teleportation, invisiblity to muggles, walking through walls, seeing auras, sensing and transmitting thoughts and feelings through physical contact, indestructibility unless she loses her connection to her house or loved ones, and the ability to destroy other ghosts. Ghosts also can hide others in the clothes they died in, making them invisible, and she can also share her memories with others so they may be able to see them, but they exist in her place in her own memories.
Earn Your Happy Ending: Poor Annie has been through so much, being murdered, being sent to the afterlife and then being dragged back, watching the man she loved go through a mental breakdown that saw him becoming little more than a monster having to watch her three close friends die, having to protect baby Eve from danger and having to kill baby Eve to save the world. It's only fitting that she was finally able to move on and get her happy ending.
The Empath: In Series 2 she learned to feel tastes and sensations through physical contact.
Fearless Undead: She often reminds others (and herself) that, being dead already, she has very little to fear from any physical danger. She can however be taken into the afterlife by other ghosts or mysterious otherworldly forces, and removing her emotional connections allows her to be disintegrated. She's come back from the latter once due to her friends coming back and sheer willpower, but Herrick suggests that burning down her house and killing her friends would destroy her permanently.
Freudian Slip: When Tully grabs Annie's arm she calls him Owen and says he's hurting her.
Ghost Amnesia: Annie is initially unclear on the circumstances of her death, this appears to be pretty common among Ghosts.
Ghostly Goals: Annie's goals for staying in the realm of the living seem to change throughout the series. First she had to get revenge on her murderer Owen, then she had to kill Eve.
Jacob Marley Apparel: Annie's been stuck wearing the same outfit since she died, but how she wears it can change depending on her mood. Her floaty top will be wrapped up if she's feeling anxious, but will be open if she's feeling relaxed.
Let's Get Dangerous: Most of the time Annie's a nice girl, if a bit panicky and neurotic. If you threaten her loved ones though, she'll tap into her rarely-used ghost powers to drag you into the afterlife or wipe you from existence.
Like Brother and Sister: With all her boys really, but most evidently with George, who she often argues with, but shows a deep amount of love for.
Mind over Matter: Due to strong emotions she became a poltergeist, randomly moving objects around her. After power increases Annie gains controlled telekinetic abilities when she has enough motivation, throwing vampires around in Series 1, and disarming another when Eve is threatened in Series 4.
Red Eyes, Take Warning: It seemed to simply be a result of the way the scene was staged and lit instead of anything deliberate, but when Annie completely annihilates Owen, her dark brown eyes have switched over to a light purplish-blue. It's subtle enough to be very unsettling.
Sadistic Choice: Kill Eve and save the world or to protect Eve but let the Old Ones take over the world? She kills Eve and the Old Ones, saving the world.
Taking You with Me: A kind of time-delayed variation in the Series 2 finale after Kemp forces her through a door, she pops back out of one to drag him into the afterlife and save her friends when he tracks them down later.
Josie: "Oh right, I thought perhaps you were a wizard or something."
George: "A wizard? That's ridiculous."
Beware the Nice Ones: George is a shy, awkward man who simply wants a simple, normal life. But once a month he becomes a killing machine, and George himself has knowingly killed several vampires, including Herrick.
Enemy Within: The werewolf is implied in series 2 to be an actual separate entity within him. George himself considers it as such for most of Series 1. When he tried to sedate the wolf to prevent the change, it worked, but caused several unfortunate side effects. George claims that the wolf knew what he did and was pissed it wasn't allowed to get out!
Evil Feels Good: In the pilot, George says that the worst part of his lycanthropy is that some part of him looks forward to it.
Like Brother and Sister: With Annie. They often fight, and he finds her irritating a lot of the time, but they are shown to really love one another.
Mistaken for Gay: People who are acquainted with both George and Mitchell but don't know them well tend to assume they're lovers. Mitchell, who's bi, laughs it off—but George, who is straight, is indignant. (His strong denials become even funnier when you take into account his actor is gay.)
Morality Chain: Tries to be one to Mitchell, not entirely successfully.
Famed in Story / Memetic Badass: Mitchell is something of a legend among vampires, even getting his own creepy Fan Boy stalker. They tell stories about his murders, particularly Herrick.
Misaimed Fandom: He is none too pleased about it though, complaining that his actions can be seen as an inspiration to other vampires.
Evil Feels Good: Like all vampires, it's hard for Mitchell to resist the lure of being evil and giving in to his blood addiction.
Friendly Neighborhood Vampire: Deconstructed and subverted. Mitchell is an addict, and simply can't stop himself killing others, no matter how good his intentions are. In fact his attempts to be a Friendly Neighborhood Vampire possibly make his situation worse, as after going without blood for a long time, when he kills again it's often particularly bloody.
Glamour Failure: He doesn't appear in mirrors or on cameras, the latter of which gets him in trouble in series 3.
Go Out with a Smile: He does because he finally gets to be at peace, and it's both heartwarming and heartbreaking.
Horror Hunger: In this universe, blood addiction is psychological.
Iconic Item: His black fingerless gloves. In-universe he wears them as vampires are cold.
The Medic: Nina is a nurse by profession (the first time we meet her she's chewing George out for making a mistake that's caused trouble on her ward), and in Season Three, any time someone needs some patch up, she's the one who gets out the first-aid kit and gets to work. Although nursing is usually seen as a low-status profession, in a household where Mitchell is a hospital cleaner, George is a porter and Annie is usually too insubstantial to be able to get a job at all, being a highly competent nurse puts Nina at the top of the professional status ladder.
Face Death with Dignity: When Future-Eve discovers that she has to die in order to save humanity, she has one of her men to kill her.
Hide Your Children: Eve gets saved from mortal danger a lot, as she might have to be preserved to save humanity. Massivly subverted in the finale though, where Annie blows her up with herself and the Old Ones.
He Had a Name: According to Hatch's illusion of him during "The Last Broadcast", even when he'd become too old and forgetful to remember what he'd had for breakfast that morning, he could never erase the names of the five people he killed during the cage fights.
Unwitting Pawn: Future-Eve told him to find the War Child so he would be cured. Actually she just wanted to bring Hal in the house hoping he would kill her baby-self after the loss of his morality chains.
Like Brother and Sister: With Hal. She's also ready to miss her door and the chance to be with Leo in the afterlife to not leave him alone.
The Long List: According to Leo, her pet peeves include puns, culottes, slow walkers, Tracy Beaker, "party" being used as a verb, Jeremy Vine, Christmas towns, tropical fish, celebrity columnists and shiraz. Oh, and Swindon.
Heel-Face Turn: Of a sort. She saves Mitchell, George and Annie from the funeral parlour, but she tells Mitchell to stake her because she knows she's becoming an evil person, and will kill people unless he does it.
Ivan: What, are you imagining some kind of peaceful co-existence? It'd be chaos! Worldwide panic. Good news for religion, mind, especially Christianity. There'd be standing room only in the churches all of a sudden. And as soon as they knew about vampires, they'd know about werewolves, they'd know about ghosts. They'd be next. And when humanity had finally finished with us, it would turn on itself. First the other religions, massively in the minority now, then the homosexuals, the disabled... Do you want to know what the future looks like? Enforced worship in churches a mile high and every country surrounded by a coral reef of bones. *pause* But fuck it, maybe it should happen. There's nothing on TV at the moment.
Pet the Dog: As much of a bastard as he could be, Ivan really did love Daisy. He only agrees to help Mitchell provide a support group for vampires because he hears that Mitchell is trying to clean up his act for a woman. "Everyone deserves a Daisy", he tells him.
He also saves Mitchell by shielding him with his own body from the parlour explosion.
Monster Progenitor: It's unlikely that the first vampires are among them (two Asian brothers), but they've sired other vampires on the show. Hettie sired Herrick, for example.
Hal states that most vampires can trace their lines back to Mr Snow, making him one of the oldest vampires, although not one of the original duo.
Our Vampires Are Different: They're like the others in the show but stronger, and Wyndham can enter houses uninvited. Mr Snow also has rotten teeth instead of fangs for unknown reasons.
Pals with Jesus: Well not pals, but Mr Snow claims he met "the son of the carpenter".
Red Right Hand: Mr Snow has blue veins covering his face, rotten teeth and rashes around his eyes, possibly because he's so old.
Smug Snake: Mr Snow acts as if everything will go his way, and treats anyone who isn't an Old One with largely bored contempt.
Stock Evil Overlord Tactics: They want to overrun Britain with vampire soldiers then march in land taking cities, eventually moving onto the rest of the world. Cutler recognises just how idiotic this is in the modern world where military forces can be mobilised in minutes, so he's coming up with a different plan
Super Strength: Mr Snow provides the most impressive display on the show: disembowelling a man with one hand.
Stronger with Age: Wyndham can enter houses uninvited, and he's over 1000 years ago. However he implies it could just be a trick rather than a developed ability. Hal also states that Old Ones are unaffected by crucifixes. Mr Snow is also apparently the strongest vampire on the show.
Vampire Monarch: They're considered practically royalty. Even Hal, who's a mere 500 years old and has been off the radar for 55 years, has local vampires deferring to him and calling him "lord".
Villain Exit Stage Left: Although dubious whether she had a choice or not, Hettie, the only surviving Old One of the group, accepts Rooks proposal to let her board a plane and go back to Bolivia, after Hal went and "cocked up" the original plan.
A ghost from the 1970s, he says he's been sent by Nina to help Annie with Eve. Actually, he's there to kill the baby.
Serial Killer: Claims he wanted to be known as such alongside 'the greats', and is bitterly disappointed to learn that 'The Toyman', his chosen name, hasn't become infamous in the years since his death.
A young, very modern vampire serving the Old Ones in Britain as best as he can.
Determinator: He endures bursting into flame when he enters a home without an invitation
Dragon with an Agenda: Sort of. While he's keeping his plan to expose werewolves to humanity from the Old Ones at first, he attempts to proudly reveal it to them. However he doesn't follow them out of loyalty so much as a desire to be a "history maker".
Genre Savvy: He's coming up with a more sneaky plan for the Old Ones to take over the world than their original one, which involved landing on Britain with vampires and slaughtering anyone in the way.
Glory Hound: His primary motivation is to be remembered by all.
Hard Work Hardly Works: Cutler works the hardest out of all the vampires to aid the Old Ones in their conquest of the world, facing derision for his youth and lack of physical skill. Yet he is rejected by the Old Ones after the Men In Grey cover up his reveal of the existence of werewolves.
I Hate You, Vampire Dad: Zig-zagged a little. He hasn't gotten over Hal killing his wife, but he still wants to make his sire proud and have him on his side.
A grumpy old man who lives in the hotel Hal and Tom get jobs in, he's actually the devil in human form, trapped in the body of a madman since 1918. He feeds off conflict between vampires and werewolves.
A Chat with Satan: He tempts Hal, Alex and Tom with dream realities where they all get to live human lives.
Affably Evil: After he stops being a decrepit old man he seems to mellow out a bit, speaking politely to everyone.
Alien Geometries: Turns Honolulu heights into this temporarily when Alex is trying to run away from the men with sticks and rope. When she points out how they're back where they started, we get a brief look at an M.C. Escher painting of stairs leading everywhere. See also Reality Warper.
Ambiguous Ending: We are left unsure if the Devil won and destroyed the earth, or if he really is dead. Without Word of God we'll never know.
Bigger Bad: Indirectly, he is the Big Bad of the entire series, because he is responsible for the existence of vampires, werewolves and ghosts in the first place.
Blood Magic: He was bound into human form by a combination of werewolf and vampire blood.
Body Horror: When he possesses the madman that has been placed for that exact purpose, he ends up bending impossibly backwards while laughing horribly, and even does some... disturbing things via his neck.
Chaotic Evil: Invoked. It's his inherent nature, what he was created for. God apparently made the Devil to tempt and hinder mankind for some reason, partially to act as an example to humans that they can transcend. Hatch comments that they failed miserably, seemingly both impressed and disgusted that they became even worse during the century he wasn't there to tempt them!
Compelling Voice: His primary power, with this he can: turn people into mind-controlled zombies, convince them their insides were on fire, tell a secret that they would never tell, or cause the entire UK to commit suicide.
Deal with the Devil: Offers a dream of being human and normal lives to the Trinity, in return for not trying to stop him.
Demon Lords And Arch Devils: Possibly. There's mention of a "beautiful" demon in series 4, and succubi exist. Their relation to him is unclear, though considering he apparently gave rise to both werewolves, vampires and the "men with sticks and ropes", he probably had a hand in creating them too.
Demonic Possession: The Devil has no shape of his own so possesses the closest human vessel.
Devil but No God: God gets mentioned in passing by The Devil. Apparently He exists, He just isn't paying attention, believing (wrongly) that humans are too evolved to screw up without him. So the Devil is now the most powerful being involved in mortal affairs.
Did You Just Punch Out Cthulhu?: He gets Killed Off for Real in the last episode. The Devil gets Killed off for Real. Possibly not though as it is implied the Devil has sent the cast to dream reality where they 'think' they killed him. He meanwhile is destroying the real world ..
Dream Weaver: a major plot point of the final episode, The Devil weaves several false realities to trap the heroes he may have trapped them in a Dream Within a Dream: and now they may all be trapped as he destroys the earth...
"The Reason You Suck" Speech: has a very lengthy (but awesome) one of these, once he has risen to full power in the final episode, just before he plans to make everyone in the world commit suicide...
The Devil: “There are a couple of things I’d like to get off my chest. You see ever since you crawled from out of the primordial soup, and flopped on to the beach, I thought I was the one holding you back. Distracting you with shiny stuff and gun-powder, and then I was put on…the reserve bench, shall we say, and I thought ‘oh well, that’s that, without me whispering in their ears – they’ll build utopia’. (chuckles) … well deary me, I got that wrong. HE made you so he could retire, did you know that? You were meant to be the pinnacle of evolution, the creature so sophisticated and powerful you wouldn’t need HIM. And he could go back to his gardening and his word-search puzzles… but what do you do? You elect leaders that despise you and rob you of your freedom and dignity, you pollute and devour your Eden, you know beauty to be false but you prostrate yourselves before it. you think to be a philistine is honest, to be educated is cunning, you find the lowest common denominator and then you digdeeper. I was supposed to be the lesson, I was the warning, I was the villain, and you all became my tribute act... there is nothing I can do, nothing in all the palaces of the imagination worse than what you do to each other…you dragged the world to the brink of the abyss. Welldone! And now im just gonna give it that final nudge…”
Evil Old Folks: Has the form of a filthy old man. Later smartens up but is still old.
Fantastic Racism: Seems to dislike werewolves in particular. although he doesn't seem to like any of the supernatural beings he ended up creating.
He's also a racist by Human standards, making racist remarks towards Mexicans in the first episode.
Although by his speech in the last episode, he's disgusted by all Humans!
Faux Affably Evil: He can act charming and kind when he wants to, but make no mistake, it's for his own benefit. He wants to destroy mankind after all.
French Jerk: In a manner of speaking, since his host is apparently French.
Hell on Earth: His plan. Europe gets completely wiped out (Britain first), Russia and everything east becomes ridden with plague, Africa becomes a land of famine, and the Americas suffer perpetual war.
Humans Are the Real Monsters: Firmly believes this, pointing out that he was out of action for over a century, yet instead of making a utopia as God believed, humanity made the world even worse!
I Have Many Names: He quotes this word for word and lists some of them to Rook once he reveals his true identity.
Man of Wealth and Taste: Inverted. He's a pensioner in a grotty old cardigan with rotting teeth. Played straight later though when he's stronger, where he wears a nice suit and uses a cane. He can also act well-educated and articulate when he wants to, as shown with his interactions with Hal.
Manipulative Bastard: He convinces Rook that chaos between Hal and Tom would encourage support for his department. This leads to Rook using his surrogate daughter Natasha to seduce Tom and then feed Hal. Hatch then forces Natasha to commit suicide in the same room as Hal, driving the furious Tom into trying to kill Hal, thinking that he murdered her. This conflict empowers Hatch significantly.
Politically Incorrect Villain: Calls the main characters 'poofs' when they reject his fantasy world and is first seen calling a young woman 'filthy whore' and other expletives. There's also some racist overtones in what he says, and refers to Bobby as 'Rin Tin Tin' because of his werewolf condition.
Revenge: He'd like nothing better than to rip Hal's heart out.
Schrödinger's Butterfly: It is implied The Devil sent all the heroes to a dream world, from which they woke and killed him...which it was further implied took place in another dream world, which corrected a crucial mistake in the first. "You should have put us together", indeed.
Screw This, I'm Outta Here: When he sees his current vessel of Hatch is about to be killed by a sniper bullet, he leaves the body, apparantly for good 'into the hearts of men'. Ultimately subverted later, though, as he is revealed to have just switched bodies.
Fur Against Fang: The first werewolf to show real animosity towards vampires. Considering his Dark and Troubled Past involving being kidnapped by vampires and forced into a cage fight with a werewolf this is probably justified.
Muggle Power: Him and his predecessors have kept the supernatural a secret since Cromwell's time.
Muggles Do It Better: Subverted. It initially appears that he successfully offed the Devil himself while all the supernaturals present were flailing around achieving nothing. Turns out he just let it possess him.