Fiona BelliThe eighteen-year-old main character of the game. Fiona is an ordinary girl on her way home from college, when a tragic car accident claims the lives of her parents and turns her own life into a nightmare. She awakens, wrapped only in a sheet, alone, and locked in a cage in the depths of an ancient castle. With only fragmented memories of the accident, and having no idea how she even ended up in the castle, Fiona unlocks the cage and sets out to get the hell out of the castle.Her only ally is a dog named Hewie, who will aid her in her journey.Fiona is a bearer of Azoth, the mystical essence of life. Everyone except Debilitas wants this for their own reasons, and they're more than willing to kill her for it. The mark on her back isn't a graphical quirk, it's actually a symbol that shows that she has Azoth within her.
Action Girl: A very, very deconstructed example: she can fight her stalkers head on, but due to her lack of athleticism, her kicks are extremely weak (only strengthened by tougher boots) and her shoving tends to leave her exhausted, so it's not recommended. Pretty much, she's an awful fighter. But to give her some credit; she can at least hold her own, especially when Hewie gets injured by Riccardo.
Break the Cutie: She's kidnapped after her parents are run off the road in a fatal car crash and awakes to find herself locked in the basement of an old castle, where everyone and everything is either trying to kill her, or rape her, for her Azoth. Which she's never heard of and hasn't the faintest idea about. Then spends the entirety of the game running for her life, hiding in dark corners, and trying to protect her virginity. Thank God, she's at least got Hewie to protect her.
Damsel in Distress: Haunting Ground uses this as a gameplay mechanic, by making it so Fiona has to rely on Hewie as her primary means of defense. This is especially the case when she's in full panic mode and unable to move. And when she's being pursued, her only recourse is usually to run and hide until the danger's passed.
Deadpan Snarker: Not in any cutscenes, but some of her thoughts and comments throughout the game definitely have a snarky element to them.
Fiona Grabs a Gun: She gets a six-shooter with her cowgirl costume, which changes her basic attack from a kick, to firing shots. While this allows her to attack from a somewhat safer distance (it's only mid-ranged), the player has to take care not to accidentally shoot Hewie when trying to pet him.
Going Commando: Invoked twice, during the game. The first instance occurs at the beginning (noted under: Modesty Towel). The other is while she's wearing her "Under the Scalpel" costume. Justified since she'd been stripped down by Riccardo, while she was unconscious, so he could give her an ovulation test.
HewieAn intelligent white German Shepherd Fiona found tied to a tree. Seeming well-cared for, he drives off Debilitas and becomes a valuable companion to Fiona. He is able to detect traps and nearby enemies, sniff out hidden items, and get items Fiona cannot reach. Like any pet, the more Hewie likes Fiona, the faster he'll respond to her call and commands. He is Fiona's main form of attacking and can be praised for doing good things and scolded for being disobedient. This ordinary dog seems to be Fiona's very key to escaping the castle.Being mean to Hewie will cause him to die and give you the worst ending in the game.
Action Pet: White German Shepard that listens to you while ripping people a new one on demand? Yes please!
Canine Companion: Hewie serves as Fiona's primary means of defense and is also required for solving many of the castle's puzzles. At other times, he's used to snag items that are in areas which are inaccessible for Fiona.
Deadpan Snarker: His comments regarding Fiona or the situation tend to be rather hilarious and snarky, though they are viewable only on Hard Mode.
Relationship Values: An important aspect of the game. How quickly and reliably Hewie responds to Fiona's commands depends entirely on how well the player treats him. However, if the player mistreats him, Hewie may ignore Fiona and, in extreme cases, he may even attack her, himself!
DebilitasThe mentally-stunted gardener of Belli Castle. He mistakes Fiona for a big doll and pursues her, but he harbors no murderous intent, he just wants to play. Problem is that he hugs her too hard.Fiona can choose to let him live by dropping the chandelier on him during his boss fight, or she can end up killing him with Hewie and the stun bombs she finds scattered around the castle. On the second playthrough or beyond and if Fiona spared him on the previous cycle, using the chandelier on Debilitas will make him give you a castle key, which leads to Ending C.
Anti-Villain: Unlike every other Chaser in the game, Debilitas is not out for murder and self-gain. He just likes playing with dolls, and seems to think Fiona is a much better toy than what he already owns. Think of him as a child who does not know his own strength, and has yet to learn how not to break his playthings.
DaniellaA maid with ethereal beauty, Daniella appears mostly emotionless and harmless to Fiona... at first.Daniella is a homunculus. Her master, Lorenzo, created her to be the "perfect woman". However, she is unable to feel pain (which explains the blood on her fingers), has no sense of taste, and cannot feel pleasure. With feelings of being incomplete, Daniella is driven to insanity. She screams at her reflection, and wants Fiona's Azoth to be a complete being... even if it means cutting out Fiona's womb while she's still alive. She tends to swing back and forth between doing her duties as a maid, and has an extremely unnerving laugh.
Mood-Swinger: After going full-blown Ax-Crazy, there are some places in her area where she will be completely uninterested in Fiona, having gone back to being an Emotionless Girl. The second you leave such an area, all bets are off.
RiccardoThe hooded castle keeper, Riccardo is fully intent on making Fiona "his". He usually acts as Mr. Exposition towards Fiona until......he reveals himself to be one of Lorenzo's many "failed" clones to be bearers of Azoth. Technically, he is Fiona's "uncle" and her father's "brother". His goal is to impregnate Fiona, so he can be 'reborn' with Azoth as a means to live forever. He actually succeeds in the worst ending.
LorenzoAn unseen figure who tries to help Fiona as much as he can. But what are his real intentions?Lorenzo is actually a genius (if mad) alchemist who made an elixir of life to cheat death. He tried to make clones of himself, all of them failing to produce Azoth except Ugo, Fiona's father. Ugo, against Lorenzo's wishes, married a woman named Ayla and left the castle, eventually fathering Fiona. Fate drew the family back towards Belli Castle, and the car accident sets the events of the game in motion. Lorenzo just wants to kill Fiona for her Azoth.
Antiquated Linguistics: Calls Hewie a meddlesome cur when he attacks him. As he's in his young form at the time, it might be a subtle way to remind the audience that he's an immortal being from an earlier time.
Big Bad: Lorenzo is behind virtually everything bad that happens to Fiona for the entire game — the reason the bastard's after her to begin with is because she was fathered by his only successful clone against his wishes, and every stalker also after her is his creation, and except for Debilitas, has designs on her because of the Azoth in her body.
Devour the Dragon: A hidden cutscene after Riccardo's death shows Lorenzo dragging himself over to his body and sucking out Riccardo's remaining Azoth through the lips. This is why Lorenzo rejuvenates later, and if that amount of Azoth was able to turn a creepy dilapidated old man into a powerful young sorcerer, it's no surprise that he wants the Azoth bonanza inside Fiona's body.