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The Helstrom Family
Daimon Helstrom
Daimon Helstrom
Species: Human-demon hybrid
Portrayed By: Tom Austen
A professor of ethics who moonlights as an exorcist.
- Adaptation Dye-Job: He's ginger-haired in the comics.
- Adaptation Name Change: From Hellstrom to Helstrom.
- Healing Factor: Can quickly recover from wounds such as gunshots.
- Mind over Matter: Has telekinesis as one of his powers.
- More than Just a Teacher: Hunts demons while holding down a job as an ethics professor.
- Movie Superheroes Wear Black: He's dressed head to toe in black clothes. In the comics he tends to wear a red cape and pants with no shirt. That said, his comic basis is sometimes depicted as simply wearing dark leather pants and no cape.
- Occult Detective: He moonlights as an exorcist.
- Playing with Fire: One of his demonic powers.
Ana Helstrom
Ana Helstrom
Species: Human-demon hybrid
Portrayed By: Sydney Lemmon
The owner of an auction house and a vigilante.
- Adaptation Name Change: From Satana Hellstrom to the much less scary Ana Helstrom.
- Calling Parents by Their Name: She calls her mother Victoria by name.
- Deadpan Snarker: Has a lot of these moments.
- Leg Focus: A number establishing shots focus on her legs and she is quite often seen wearing a long shirt sans pants in casual settings.
- Life Drain: She has this power, which she uses to kill serial killers.
- Lipstick Lesbian: Fairly severely dressed, but certainly not butch.
- Mind over Matter: Has telekinesis as one of her powers.
- Psychometry: She can sense the history of a person or object by touch.
- Really Gets Around: "Swipes right" (in her right-hand man's words) to deal with stress, and does it so often she usually has trouble remembering the lady's name.
- Super-Toughness: Can take a beating, including getting repeatedly thrown into the ceiling by a demon.
Victoria Helstrom
Species: Demon-possessed human
Portrayed by: Elizabeth Marvel
The long-suffering mother of Ana and Daimon, abused wife of Marduk, and possessed victim of the demon Kthara.
- And I Must Scream: All possession victims suffer this, but she gets it really hard from Kthara.
- Fighting from the Inside: She's been fighting Kthara for decades. Most possession victims burn out quickly, but she's so capable that she's lasted decades.
- Mama Bear: So devoted to her children that when Kthara tries to use her children to manipulate her in her And I Must Scream situation that she turns the tables and wakes up for a time.
Allies
Dr. Louise Hastings
Louise Hastings
Species: Human
Portrayed By: June Carryl
A psychologist and director of the Saint Teresa Center for Mental Health.
- Adaptational Wimp: She's not a demon hunter like her comic book counterpart.
- Parental Substitute: She basically adopted Daimon after he had his mother committed to the St. Teresa Center.
Gabriella Rosetti
Gabriella Rosetti
Species: Human
Portrayed By: Ariana Guerra
A former member of the Talitha Kum and envoy of the Vatican.
- Broken Bird: Her experience throughout the show leaves her mentally broken and causes her to join the Knight Templar Blood.
- Demonic Possession: Invoked. During her childhood she began showing symptoms of epilepsy, which her parents mistook for demonic possession. Later she's actually possessed by Kthara after the demon is forced out of Victoria, as she had been scarred by Basar.
- Gender Flip: Her comic book counterpart is Gabriel the Devil-Hunter, who once employed the alias of Gabriel Rosetti.
- Naïve Newcomer: When she arrives to St. Teresa, she has never faced an actual demonic possession before.
- Womb Horror: While posssessed by Khtara she's impregnated by Basar in Daimon's body. Afterward, Kthara incarnates in the child, leaving Gabriella free of Kthara's control but impregnated with a demon baby.
Caretaker
Caretaker / Henry
Species: Human
Portrayed By: Robert Wisdom
A member of the Blood that watches over Ana Helstrom.
- Adaptation Origin Connection: In the comics, Caretaker is utterly unconnected to either Daimon Hellstom or Satana, and is actually a Ghost Rider supporting character, usually for Danny Ketch.
- Adaptation Species Change: In the comics, the Blood are a supernatural race instead of human demon hunters.
- Named by the Adaptation: Known only as Caretaker in the comics, he's given the name Henry here.
- Parental Substitute: Averted. He allowed Ana to go into the foster home system because he was afraid of her.
- Race Lift: Caretaker is Caucasian in the comics, black in the show.
- Token Good Teammate: The only member of the Blood who is not a Knight Templar and that considers Daimon and Ana to be human.
Chris Yen
Chris Yen
Species: Human
Portrayed By: Alain Uy
Ana's partner and foster brother.
- Brainwashed and Crazy: He's mind-controlled by the Keeper's skull.
- Canon Foreigner: Chris has no basis in the source materials.
- Cleanup Crew: He's a one-man version of the trope in Ana's vigilante activities.
- The Renfield: The Keeper's skull influence makes him subservient to it, and leads him to feed on insects and rats, similar to the Trope Namer.
- Parental Substitute: He becomes this to the baby Kthara.
- Pay Evil unto Evil: He aids Ana in her vigilante crusade.
- Straight Gay: Although he loves the finer things (which matches some gay stereotypes), he fits in perfectly as the employee of an auction house dealing in antiquities. Then his black cop boyfriend shows up...
- Undying Loyalty: Chris and Ana shared a foster home, explaining his willingness to aid her in her Serial-Killer Killer pastime.
Demons
In General
Demons are a malevolent species capable of possessing humans.
- Demonic Possession: Most of them exist in spirit form, which allows them to possess humans scarred by a powerful, physical demon. Other demons, such as Basar, take over their hosts by infecting them as parasites.
- Energy Being: Most demons seen on the show don't have bodies of their own, so they resort to possession in order to gain one.
- Mind over Matter: Demons are telekinetic.
- Reincarnation: Demons are not destroyed by exorcism, simply forced out of a host. They may eventually repossess their victims or move on to another one.
Marduk Helstrom
Marduk Helstrom
Species: Demon
Portrayed By: Mitch Pileggi
A demonic serial killer who came back to life after getting shot in the head. The father of Daimon and Ana Helstrom.
- Adaptational Species Change: Downplayed. In this continuity, he possesses a human when he marries Victoria, rather than shapeshifting into one.
- Back from the Dead: His backstory indicates he was shot in the head and came back to life nonetheless.
- Big Bad: Set up as this for Helstrom, with Ana and Daimon trying to track him down before he can begin his killings again. It's subverted with the reveal that the demon they think is Marduk is actually Basar, The Dragon to Kthara, who proceeds to take over the Big Bad role. Even then, the impact of his actions and looming shadow creates a far greater prescence than most Greater Scope Villains can attest to.
- Boom, Headshot!: His death in the backstory. He came back to life anyway.
- Demonic Possession: He was possessed by a powerful demon.
- The Dreaded: Terrifies everyone with the prospect of his return.
- Greater-Scope Villain: While he's The Ghost for most of the show, pretty much everything can be traced back to him. More directly, he's Kthara's father and trapped her inside of Victoria.
- I Am a Humanitarian: While wearing human flesh, at least, he's happy chowing down on living human victims.
- No Name Given: His name is never mentioned in the show.
- Serial Killer: Was one back when Ana and Daimon were kids.
Kthara
Kthara / Lily
Species: Demon
Portrayed by: Elizabeth Marvel (while possessing Victoria), Fiona Dourif (in her original form), Erica Tremblay (while masquerading as Ana), Ariana Guerra (while possessing Gabriella), Tom Austen (while masquerading as Daimon), Grace Sunar (when reborn as Lily)
The demon possessing Victoria.
- Ambiguous Situation: When reborn as Lily she clearly remembers some things about her past, but it's unknown how much of Kthara's memories she has, or how much of the same person they are.
- Amnesiacs are Innocent: Doesn't seem to (at least fully) remember her life as Kthara, once she's reborn.
- Big Bad: Becomes this for the second half of the season, after it's revealed the demon they assumed was Marduk is actually her son Basar.
- Composite Character: The revelation that her real name is Lily, as well as the fact that she's the mother of multiple demons, implies that she's actually Lilith, the Mother of Demons and Big Bad of the first Midnight Sons team-up. Also with Demona, Daimon's mainstream daughter.
- Extra Parent Conception: Lily technically has four parents being the offspring of Kthara and Basar having sex by possessing Gabriella and Damian respectively.
- The Heavy: Marduk is the greater evil, but Kthara is the one actively harassing the Helstroms and commanding other demons.
- Raise Him Right This Time: The Helstroms resolve to raise her reborn form to not be evil. Then "Papa" returns.
Basar
Basar
Species: Demon
Portrayed By: Daniel Cudmore / Tom Austen
Kthara's son.
- Animalistic Abomination: His basic form is that of a demonic-looking trilobite with its body covered in teeth, which he uses to attach himself to his host's spine.
- Belly Mouth: He creates a nasty looking one when inside a host, which allows him to devour his victims.
- Canon Foreigner: There's no demon named Basar in the comics.
- Demonic Possession: He possesses Keith Spivey and later Daimon.
- Disc-One Final Boss: He serves as the Big Bad for the first half of the season, until it's revealed the demon they assumed was the Helstrom father is actually Kthara's son Basar.
- The Dragon: He's Kthara's most powerful follower.
- Final Boss: As Kthara is too busy being born, Basar serves as the main villain of the final episode via a possessed Daimon.
- Humanoid Abomination: He mutates the body of his host into one.
- I Am a Humanitarian / To Serve Man: He devours the body of his victims with
- Mark of the Beast: He has the ability mark humans with scars that allow other demons to possess them.
- Parental Incest: While possessing Daimon he has sex with Gabriella, who is possessed by Kthara, Basar's own mother.
- Sealed Evil in a Can: He had been trapped in a mausoleum in Portland and kept in stasis by a Keeper demon.
Magoth
Magoth
Species: Demon
Portrayed By:
Another demon in Kthara's service.
Raum
