Note: Trope titles are not marked as spoilers in this entry. Because of this, the trope listings spoil some events of the plot. Do not read past the summaries of each character if you are not caught up and do not want to be spoiled.
A group of young women who look identical to each other because they are clones born of the same genetic material. Most of them were not aware of their true origins until adulthood, but they are of great interest to various underground conspiracies.
Clones Are People Too: A very important theme in this series is that they are all individuals who deserve to be treated as people despite their genetics.
Clone Degeneration: The clones have a predisposition to respiratory disorders and infertility, possibly caused by an unclassified autoimmune disease.
In 2.08, Ethan Duncan indicates that the clones' infertility was on purpose, implying either that Sarah and Helena's fertility was not intentional or not his doing. Unless, of course, he was just saying that to spare Rachel's feelings. It's also implied and later confirmed that the process used to make the clones infertile is responsible for the disorder that kills some of them.
Color-Coded for Your Convenience: The clones' hair is the key way the series helps to distinguish and characterize them for the viewer. Beth has it pulled back tight. Katja has dyed bright red hair. Sarah has straight black hair that is usually somewhat ill-kept. Allison has a simple ponytail with bangs. Cosima has dreadlocks. Helena has curly, ratty blonde hair. Rachel has straight blonde hair in a Sci-Fi Bob Haircut.
Dysfunction Junction: Many of the clones have emotional/psychological problems and issues in their personal lives. The stress of dealing with conspiracies doesn't help.
For the main trio, Sarah is Id, Cosima is Ego, and Alison is Superego.
Alternately, Helena is Id, Sarah is Ego, and Rachel is Superego.
Honorary Aunt: In a drawing, Kira refers to all of the clones she knows as Auntie, including Helena. (Of course, Helena is her actual aunt.) As always, Kira seems to be right. Alison says it feels like her own daughter is hurt when Kira is in the hospital, Cosima is more worried about Delphine hurting Kira than herself after uncovering her treachery, and Helena clearly loves her to bits.
Ill Girl/Incurable Cough of Death: Some develop respiratory problems. Katja and Cosima cough up blood, while Jennifer mentions that polyps were found in her lungs.
Polar Opposite Twins: Sarah and Helena. The former is a British punk and Street Smart hustler, while the latter is a bleached-blonde Ukranian assassin on a Mission from God. In Season 2, the show begins exploring the symbolism of the two being 'mirror twins' and shows them sleeping side-by-side in a tent in a literal display of Sibling Yin-Yang.
Sanity Slippage: Nearly all of them, to varying degrees. Beth, Alison, and Helena seem to be the most affected.
Sarah, Alison, and Cosima come to think of themselves as sisters.
Sarah and Helena become one in season 2.
Sterility Plague: Alison asks early on if Kira is Sarah's biological daughter (Alison's children are adopted) and we later learn that Beth was infertile. Again referenced when Helena asks Kira how she could possibly be Sarah's daughter. Helena is visibly distraught by this. Tomas immediately declares that Kira shouldn't exist upon learning of her existence, and decides to hunt her down. Delphine deliberately hides her existence from Dr. Leekie.
Possibly averted in that the encoded patent in the clones' DNA covers "this organism and derivative genetic material", implying that their creators may have accounted for the possibility of children... or further cloning. However, it's later revealed that Sarah is the only fertile clone the Neolutionists are aware of, and they don't even know how. Even later, it's revealed that Helena is fertile as well, which is probably possible since she's Sarah's twin. Sarah and Helena's fertility is stated to be unintentional and is implied to have occurred because Amelia fled the project before Dyad could ensure that they were infertile.
Three Plus Two: Clone Club. Sarah, Alison and Cosima make the Power Trio while the late Beth and Katja round out the Five-Man Band.
Twin Switch: There are many instances of clones impersonating each other. Sarah has gone as Beth, Katja, Alison, Cosima, and Rachel (over the phone); Alison has gone as Sarah; Helena has gone as Beth and Sarah; Rachel has gone as Sarah.
Invoked by Sarah in the second season premiere. To distract Daniel, Sarah leaks Alison's location as well as the make of Alison's minivan. When Daniel captures Alison thinking it is Sarah, he is forced to let her go when he realizes he has been had.
The main protagonist, Sarah witnesses the suicide of a woman who looks exactly like her and decides to use it as an opportunity to escape her troubled life. But, as she quickly discovers, Beth Childs had troubles of her own.
Character Development: Sarah starts out wanting nothing more than to steal enough money to take Kira and run away. Discovering the conspiracy forces her to take a look at the bigger picture. She even returns the money she stole from Beth's account to Alison.
Clingy Jealous Girl: Averted. When Rachel forces Paul to sleep with her, Sarah's only real concern appears to be stopping Helena from killing Rachel.
Cool Big Sis: To Helena, despite being twins, due to Helena's child-like nature. The bond currently runs hot and cold, though, due to some heavy baggage, Sarah's often-selfish nature, and Helena being, well, Helena.
Cry Cute: When she sees Kira at the funeral and when Kira is hit by a car.
I Just Want To Be Free: Most of her problems arise from her desire to live on her own terms. The fact that there are two conspiracies aimed at either controlling or killing her makes this difficult.
Improbable Aiming Skills: Having never fired a gun before, Sarah is horrified to learn that, as Beth, she must pass a police handgun qualification. Luckily, after a few hours of target practice with Alison, she becomes a crack shot.
Jerkass: Sarah can be rude, selfish, and harsh. Upon seeing Beth kill herself, her first instinct is to take her stuff and impersonate her for monetary gain.
Jerk with a Heart of Gold: However mean she is, Sarah genuinely loves her daughter and foster-brother, and is becoming more and more fond of the other clones.
Mama Bear: Nearly everything she does, she does so she can live a happy life with Kira. This is especially prominent after Kira disappears in the season one finale. She later develops this attitude toward her fellow clones, such as when she admonishes Cosima to be careful and rips into Alison's husband for taking her for granted and talking down to her.
Ms. Fanservice: More so than the other clones, interestingly. A lot of it comes from her sex scenes with Paul and many clothes-changing scenes. Then there's her fondness for tight leather.
Parental Abandonment: Guilty of it. She left Kira in Mrs. S's care and left town for ten months. In season 2, she leaves Kira with Cal so she can continue her fight with her daughter in relative safety. Kira, understandably, seems to grow a bit resentful at once again being loved from a distance.
Functional Addict: Beth was taking apparently taking more pills than she should have but no one seemed to notice much.
Passionate Sports Girl: According to some home movies, she competed in marathons. Paul realizes that Sarah is a fake because she didn't know the last marathon Beth competed in. She also participated in mountain biking.
Butt Monkey: She's starting to seem like fly paper for monitors. Except for Clone Club and Aynsley, anyone else expressing an interest in her always ends up having an ulterior motive. Donnie is spying on her for Leekie as her monitor, and as of 2x06, Vic is watching her on Angie's behalf.
Cute and Psycho: Alison is on the "high intensity, lower than most stability" side of things. While not Helena levels, she immediately pulls a knife on Sarah, pulls a gun on Felix, tortures her husband (and kind of enjoys it), and punches out Aynsley (and kind of enjoys that too). And then there's coolly watching Aynsley die.
The Gunslinger: Her first instinct is always to pick up a gun whenever there's danger.
Happily Married: Subverted. The clone conspiracy plus her general uptightness cause a lot of problems for her marriage with Donnie. She even contemplates divorcing her husband rather than telling him the truth.
As of 2x09, their marriage seems to be taking a turn for the better, although in a very strange way due to them bonding over hiding Leekie's corpse and finally dealing with Vic and Angie.
Hoist by His Own Petard: She slept with Chad, her best friend's husband, to mess with Aynsley's life. While that did work, it made Alison a social outcast and led her loved ones to stage an intervention.
Honorary Aunt: She becomes this to Kira, to explain why she was impersonating Sarah.
Leitmotif: Her appearances are usually accompanied by tinny xylophone-driven melodies, somewhat whimsical yet subtly sinister as well.
Mama Bear: Her children are her top priority. Do not mess with them.
My God, What Have I Done?: Even before learning that her true monitor was her husband, she's been feeling guilty for letting Aynsley die. After her suspicions are confirmed, she realizes she let her die for no good reason at all.
Neat Freak: She cleans Felix's house while he's away, much to his dismay.
Dreadlock Rasta: She's very different from the other clones in terms of temperament, more laid back, more optimistic, hence why she looks very different from them.
Erudite Stoner: She's shown smoking pot a few times. She doesn't have the slurred speech, but she does wear dreadlocks and hippy-ish clothing. That, and her gems of wisdom are standard rather than special.
Gamer Chick: In episode 2.8, she walks in on Scott and his buddies playing a fantasy tabletop game in her lab. She appears completely disinterested at first, but then firmly corrects them on a rules argument she overhears. They invite her to join in, and true to the trope, she crushes them handily. The guys seem to go from love-struck to frustrated as she takes over.
Love Makes You Dumb: She romantically pursues someone she knows might be spying on her, compromising her safety and the safety of the others clones, then is hurt to learn that Delphine was in fact spying on her.
Meaningful Name: Her name derives from the Greek word kosmos, meaning "order" or "universe". Cosima is also the feminine version of Cosmo, who is one of the patron saints of medical doctorsnote The other one is his brother Damian. Quite fitting for a scientist trying to understand her biology.
Tuckerization: The character is based on and named for the show's scientific advisor and friend to the creator, Cosima Herter.
Nice Girl: More welcoming and upbeat than her counterparts.
Only Sane Woman: Subverted. At first, she was easily the most level-headed and well-adjusted of the clones, but even she started showing signs of unraveling. While pursuing her monitor she acts quite rashly, but insists to Sarah that she knows what she's doing. Cosima doesn't like to admit her mistakes.
Voice with an Internet Connection: Since she's away at university for a good portion of Season 1, Cosima and Clone Club stay in touch via cell phone and video chat. As of the Season 1 finale, she's moved to the same city as the others. Resumed early in Season 2, when she moved into her new lab at Dyad to research/treat her illness.
Not much is known about her except that she's German and had a briefcase containing information about the clones. She was murdered in her first appearance.
Non-Idle Rich: Never outright stated, but she does wear expensive clothes, drives a great car, and stayed at a luxury hotel suite. When Sarah uses Katja's credit card to cover damages to the hotel room, the card accepts thousands of dollars in charges without issue. She was an active participant in the clone conspiracy; making contact with the other clones, digging up useful information, and collecting tissue samples for scientific research.
Sacrificial Lamb: Her death established the existence of a clone murdering conspiracy.
Small Role, Big Impact: Similar to Beth in this regard, as she essentially thrusts Sarah further into the clone conspiracy. She also foreshadows the respiratory illness that some of the clones end up developing.
Helena is another clone whose presence deepens the mystery. She's a religious fanatic.
Abusive Parents: The police profiler says that she was likely abused as a child. She says she was raised by Ukrainian nuns, which at least explains her religiosity, and several statements she made in season two confirm she suffered abuse at their hands dating back to at least the age of seven. Tomas qualifies as an abusive surrogate parent.
Adorkable: The more relaxed she gets around Sarah, the more she begins acting like her little sister. It seems pretty hard to get Sarah to laugh, but Helena has no problem with this at all.
Anti-Villain: A mix of type II and type III. She honestly believes murdering the other clones is the right thing because the Proletheans indoctrinated her (via brainwashing and abuse) into thinking that way.
Crazy Consumption: She eats a lot more than any character on the show and is the most unstable. Helena also has childlike table manners, a reference to her unusual mental state.
Delicious Distraction: Helena infiltrates the police station disguised as Beth (technically, disguised as Sarah impersonating Beth). Her plan to ransack Beth's desk for clues is momentarily derailed when she spots a half-eaten muffin, and proceeds to wolf it down. Word of God suggests this actually may have been a Throw It In on Maslany's part.
Sweet Tooth: She really likes sweets, and even puts extra sugar on her jello. She also carries sugar packets and lollipops in her pockets.
Bizarre Human Biology: Helena has situs inversus totalis, a Real Life condition occuring in some identical twins where her internal organs are mirrored from normal..
Blondes are Evil: The first notable blonde along the clones (until Rachel's appearance towards the end of Season 1), and the Axe Crazy one. Though not so much "evil" as "horribly misguided and twisted by years of indoctrination and abuse".
Made of Iron: Survives, among other incidents, being impaled by rebar; and much later, a gunshot wound to the chest.
It's revealed that Helena is able to survive her gunshot wound because she has dextrocardia situs inversus — her organs are mirror-reversed in her torso. The shot missed her heart because it's on the other side of her chest.
Madness Mantra: Certain phrases associated with Sarah seem to stick in Helena's brain, the first being "I'm not Beth" from their first confrontation and the second being "I miss you, Mommy" from Kira's letters.
Meaningful Name: Helena means "shining light" and she was told by Tomas that she was "the light". Helena also becomes fascinated by the "light" in Sarah.
She is one of the children produced by Project LEDA. In Classical Mythology, one of Leda's children was Helen of Troy.
Medical Rape and Impregnate: It's initially implied that she's artificially inseminated by Hank's people without her consent. However, in 2.05 Gracie is threatened with forcible impregnation with Helena's child, so it appears that her eggs have been extracted from her without her consent instead. Since the people threatening Gracie are her own parents, this probably makes it worse.
Mission from God: Killing all the clone because they're an "abomination". She was led to believe that she's the original and therefore has the duty to cleanse them from the Earth.
Nightmare Fuel Station Attendant: Her affinity for drawing bloody stick figures and mutilating dolls to resemble her kills, among other things, certainly qualifies her as this.
Not Quite Dead: The ending of "Nature Under Constraint and Vexed" revealed that she survived getting shot by Sarah.
Pet the Dog: She obviously cares about Kira, even though their walk together doesn't end well.
Psychopathic Womanchild: Type B. Unlike many examples, she knows how dangerous she is, but has some of the same mannerisms of a child. She also leaves clues that lead the police profiler to conclude that she had a bad childhood: mutilated dolls, bloodied paper fortune-tellers, stick figure sketches. She also plays on the bed when she breaks in Beth and Paul's apartment, eats jello with extra sugar, and wants to see Olivier's tail. None of this diminishes how dangerous she is and how far she's willing to go "cleanse" the world of the other clones.
Quirky Curls: A darker example. She has a mass of blonde curls, but is totally insane.
Room Full of Crazy: Her first hideout, a rundown apartment in a Ukrainian neighborhood, had Biblical passages written all over the walls. Another has walls filled with drawings of stick-figure people, with one having a question mark for a head.
Samus Is a Girl: At first everyone believed that the person who killed Katja and attacked Sarah-as-Beth was a man, but then Sarah got a good look at her face.
A Sinister Clue: The only left-handed clone - because she and Sarah are mirror image twins - and one of the most dangerous. Arguably subverted by the fact that she's a very sympathetic Anti-Villain who makes something of a Heel-Face Turn in the second season.
Thicker Than Water: Rachel almost says this word for word when Sarah doesn't turn Helena over to Leekie. Helena also seems to believe this, stating in the finale that she can't kill Sarah and Sarah can't kill her. This trope is Subverted when Sarah states she has a family and shoots Helena with intent to kill, and then Double Subverted when Helena survives anyway.
Tyke Bomb: It's not entirely clear how long they've had access to her, but it's strongly implied that she's been brought up by the Proletheans to make her into a clone assassin. As of season 2, Sarah's using her as a deterrent to keep Rachel and other conspirators at bay. She actually knows she's being used, but is still holding out hope that Sarah would come to care for her as well.
Undying Loyalty: To Sarah and Kira. Her loyalty even survives being shot point-blank in the chest by the former.
Walking Spoiler: It's basically not possible to discuss her now without spoiling significant aspects of the plot, as attested to how much of this entry is blanked out.
Rachel Duncan works for the Dyad Institute as a "fixer" for the clone project. She offers Sarah answers and protection in exchange for her cooperation. Except not really.
Alpha Bitch: Among the clones, she has the superior attitude and same verbal tics.
Antagonistic Offspring: She becomes this to Ethan Duncan. It's not that she had anything against him, but he knows she's up to no good and stands against her because of it.
Batman Gambit: Impressively cons Delphine and Sarah in order to kidnap Kira right from under Mrs. S.
Blondes are Evil: She employs rather unethical approaches to further the Dyad's agenda. For example, she exploits Sarah's pain at finding Kira and Mrs. S missing in an effort to get her cooperation, when it turns out she never really had them.
The Chessmaster: Basically her hat to get the other clones (especially Sarah) to do her bidding. It's not always successful as even Dr. Leekie questions her standards.
Control Freak: Likely a consequence of her being raised self-aware, which led her to develop a superiority complex.
Corrupt Corporate Executive: Complete with an "office" that takes up an entire empty floor of a skyscraper. It's eventually revealed that even Leekie answers to her!
Cry Cute: When she meets with her father after believing him to be dead.
Disappeared Dad: Apparently, he's hiding from Leekie. He later commits suicide right in front of her.
Dragon-in-Chief: For the majority of the season, Rachel is the primary antagonist, with Marian Bowles only starting to take action towards the end.
Even Evil Has Loved Ones: Not only did she seem to have a loving relationship with her parents, but she also seems quite saddened by Daniel's death. Her reunion with her father is the first time we really see Rachel's mask of professionalism crack. Despite orders from her superior, she also gives Leekie a chance to escape before Dyad can come after him.
Eye Scream: Sarah launches a pencil into her eye with a contraption Cosima and Scott created to help her escape the Dyad.
Graceful Loser: Defied. Leekie mentions she does not take "personal insults" well.
Green-Eyed Monster: Harbours a great deal of envy towards Sarah for being the only fertile clone, which leads her to kidnap Kira.
Happily Adopted: By the scientists behind "Project LEDA", at least until she was taken away from them.
I Just Want to Be Special: Implied, given her resentment towards Sarah for being the only fertile clone and her anger over the Dyad being more interested in Sarah than her.
Imagine Spot: The audience gets to see how she's really feeling as she stoically keeps a straight face for the benefit of others. As she's being told that she and most of the clones were barren by design, the conversation continues interspersed with shots of her taking her seething anger out on the things in her office.
In-Series Nickname: The "pro-clone" (initially coined by Felix) because she was a prototype raised by the organization that created them.
Locked Out of the Loop: She is notable for inverting this. While the other clones didn't learn of each other's existence until adulthood, Rachel had been aware since she was a child.
Manipulative Bastard: She has many tricks up her sleeve in order to get the clones to cooperate. This includes lying to Sarah about having Kira. Later she tries to pin the murder of her monitor Daniel on Felix, in an effort to get Sarah to surrender.
Narcissist: Discussed by Cosima and implied by the way she looks at herself in the mirror.
She spares Leekie and covers up his disappearance not knowing that he's dead.
She's also gentle with Kira, despite having kidnapped her. Or at least as gentle as Rachel can be.
Psychopathic Womanchild: A relatively rare female example who fits into type 3. She shows shades of this trope by the end of season 2, such as throwing a tantrum over Sarah's noncooperation, whom she is shown to have an extreme jealousy of due to her ability to have children, and crying in a rather childlike manner when her father dies. That last one was pretty justified though. Rachel has a tendency to come off as overly entitled, smashing Kira's bone marrow in front of Sarah just to hurt her seems to be the Rachel equivalent of smashing toys and/or property.
Sanity Slippage: Though she does a good job of hiding it, she becomes increasingly unstable towards the end of the second season.
Smug Snake: Her high position for Dyad makes her very arrogant.
The Stoic: She's very distant and formal with nearly everyone.
Not So Stoic: After Daniel's death, her professional mask beings to crack, though she tries to hide it. Happens again when she sees her father, who she believed to be dead for most of her life. Next episode initially has her back to her emotionless persona until her father reveals the clones were made infertile on purpose, making Sarah and Helena "mistakes" of sorts. Although Rachel outwardly seems to agree with this decision, the scene is intercut with moments of Rachel angrily smashing up her office, indicating she is very conflicted inside. Then there is the Season 2 finale with her father which leads to her Villainous Breakdown.
Villainous Breakdown: After learning the truth about her mother's death, reuniting with her father and being told by him that the clones are barren by design, Rachel begins to grow more and more unhinged. She finally loses it after her father commits suicide to prevent her from knowing his secrets.
Villains Out Shopping: As seen by Cosima when she is passed Rachel's itinerary from Delphine. Her "appointment" with Sarah is sandwiched between a manicure and a Gyrotonics class.
Another clone. All that is known about her is that she was from France. Was in contact with Katja. Documentation and samples for her were present in Katja's briefcase. Killed before the series began.
Posthumous Character: Her picture in Cosima's clone chart is X'd out, and she is mentioned as one of the four Helena had killed.
Another clone. All that is known about her is that she was from Italy. Was in contact with Katja. Documentation and samples for her were present in Katja's briefcase. Killed before the series began.
Posthumous Character: Her picture in Cosima's clone chart is X'd out, and she is mentioned as one of the four Helena had killed.
Another clone. All that is known about her is that she was from Austria. Was in contact with Katja. Documentation and samples for her were present in Katja's briefcase. Killed before the series began.
Posthumous Character: Her picture in Cosima's clone chart is X'd out, and she is mentioned as one of the four Helena had killed.
Another clone from the Midwest of America. She produced a video diary that was later found by Cosima.
Bald Woman: The various treatments she underwent to combat her illness caused her long, thick hair to fall out. When Cosima and Delphine perform an autopsy on her in 2x03, Delphine says as much to Cosima.
Hot Teacher: She was a high school teacher and swim coach.
Locked Out of the Loop: She never learned that she was a clone or that her boyfriend was her monitor. Considering the fact that she worked closely with the Dyad to find a cure for her mysterious ailment, it's certain the Dyad deliberately kept her ignorant.
Passionate Sports Girl: Jennifer loved to swim. At one point she was pre-olympic for the 200 meter backstroke.
Posthumous Character: Died from the same respiratory illness that some of the clones are suffering from.
Small Role, Big Impact: She only appeared in a handful of videos, but it was enough to demonstrate the full effect of the illness the clones are suffering from. In performing an autopsy on her, Delphine and Cosima learned exactly what was causing the illness and how to combat it.
Tony (née Antoinette) Sawicki
A transgender clone who appears on Felix's doorstep in the second half of season two. His friend Sammy had been in communication with Beth and sends him to her not knowing that she's long dead.
Camp Gay: Felix is so fabulous it almost hurts. Still, he's a sympathetic character, as opposed to being a two-dimensional stereotype.
The Confidant: He's Sarah's support system and the only person that the clones trust. Deconstructed in season two, when he grows frustrated with having to help Sarah with her problems while trying to managing a personal life that is constantly disrupted by the various conspiracies.
Foolish Sibling, Responsible Sibling: Felix is the more responsible sibling, pointing out the flaws in Sarah's plan to impersonate Beth and that her constant roving will eventually mean she could lose custody of Kira. Even Sarah knows this:
He makes Sarah's faked death entirely about him and the pain it causes him, not even giving a damn about Felix.
He also keeps barging into Sarah's affairs for his own satisfaction, despite the fact that she doesn't love him and that he always makes things worse for her.
Even his apparent befriending of Alison is just part of a deal to avoid jail time.
Karma Houdini: However badly he's been injured for continuing to interfere with Sarah's life, he still got away with the $20,000 from the cocaine Sarah initially stole from him. And he has yet to answer for inadvertently leading the cops to Alison.
Tropaholics Anonymous: When we last see Vic in the season 1 finale he's at a meeting. However, he's not on-board with the "making amends" part of the program so he sells Sarah out to the cops, unintentionally outing Alison to Art in her place.
Played by: Dylan Bruce
Beth's boyfriend. He notices "Beth's" strange behavior and it upsets him deeply.
Badass: Judging from his background as a "private military contractor" and his beatdown of Vic.
Becoming the Mask: He was genuinely fond of Beth and wanted to take her away to South America. Now he seems to be falling for Sarah.
Blackmail: He killed six Marines in combat and tried to cover it up. The Neolutionists found out and are holding this over his head.
Bed Trick: He sleeps with Sarah thinking she's Beth. Subverted when he later implies to the Dyad that he suspected she was someone else the whole time.
Beneath Suspicion: He works for whoever created the clones. But, Beth came to realize that there was something off about him. It's implied that she discovered his deception and was heartbroken over it.
Crazy Jealous Guy: Averted. He doesn't seem to be particularly distraught when he finds out Sarah hooked up with Cal again. Most likely justified because he has much more immediate problems to worry about, like Dyad's continued blackmail of him.
Heel-Face Turn: Turns firmly to the clones' side after episode 7. But the Neolutionists still have a hold on him.
Heel-Face Revolving Door: Bordering on Double Reverse Quadruple Agent. He is so hard to read it is impossible to know who he is truly working with between Rachel, Leekie, Sarah, and Mrs. S. Moreover, Tony's friend Sammy indicated before his death that Paul may have his own agenda, and felt that this was important enough that the clones needed to know it.
Genre Blind: Despite the evidence and knowledge about the existence of several clones, the idea of human cloning never crosses his mind. Subverted, when Sarah lets him in on the conspiracy and he notes how things make sense now.
The Chessmaster: She turns out to be the one behind Kira's disappearance. She also has something to do with Project LEDA, but her connection to it has yet to be revealed in full.
Further Chessmastery is demonstrated in 2.07 when she sets Leekie and Rachel against each other.
The Confidant: Sarah and Alison decide to trust her with their secret. Incidentally, she actually knows more about them than they do.
Crazy-Prepared: She has a number of defenses and escape routes in place should anything happen to Sarah, Felix, or Kira, as well as a network of friends and associates to call upon for help. She describes her system as bulletproof.
Dark and Troubled Past: By her comments in season 2, it's implied she was involved with the IRA by gun running for them. And then there's her ties to Project LEDA and hiding Ethan Duncan from Leekie.
Mama Bear: At first, she tries to keep Kira and Sarah apart to protect Kira because she doesn't think Sarah is a fit mother. She chills out slightly in episode four.
Episode 1.07 reveals that she moved to Canada, even though it meant completely starting over, to hide Sarah from something that was looking for her in England. Special notice to the fact that she didn't even know what that something was; she went on the hunch of a friend. Though that may be a lie.
In 2.02 it's revealed she kidnapped Kira to keep her safe from the Neolutionists and the Proletheans. When the two people she's working with turn out to be moles for the Proletheans she kills them without hesitation.
The Mole: Might be this, as the finale reveals she may have been one of the scientists involved with creating the clones in the first place. It later turns out she might be part of a tangential project involving the clones, "LEDA".
Only Known by Initials: She's almost always called "Mrs. S." or just "S". The closed captions in episode 3 identify her as "Siobhan". Her full name is revealed in episode 8.
Organized her house being ransacked and Kira's disappearance to protect Kira. But she did this without bothering to tell Sarah and Felix first, leaving Sarah extremely pissed off at Mrs. S. To make things worse, she planned to leave with Kira and go back to the UK.
Gets another one in the series two finale when she arranges to have Helena kidnapped by the military. In her defence, this may have been the only way she could have freed Sarah and Kira from Dyad, but she herself acknowledges that Sarah will probably never forgive her for this.
Played by: Skyler Wexler
Sarah's 8-year-old daughter. She went to live with Mrs. S. when Sarah disappeared.
Creepy Child: She's a little too calm and oracular for someone still in grade school.
Guile Hero: Kira must have gotten it from her mother.
While hiding with her father under assumed names, she charms a police officer to ward off his suspicions.
While in Dyad custody, she pickpockets a cellphone off a nurse and sends Cal to Mrs. S. so they can collaborate on an escape plan for herself and Sarah.
Healing Factor/Made of Iron: Was relatively fine not long after being run over by a car. Sarah's worried that being experimented on made her pass this (and potentially less beneficial things) to Kira, and the doctor's reaction to her X-rays suggests that Sarah's worry might be true.
In-Series Nickname: Sarah and Felix called her "(Little) Monkey". Helena dubbed her "Angel".
Macguffin Girl: Being the biological daughter of a clone makes her a very important scientific specimen from the Neolutionists' point of view. It's not clear yet how the Proletheans see her, but the fact that the Neolutionists want her is enough to warrant their interest. Mrs. S. alludes she's part of "Project LEDA", along with her mother Sarah. It also turns out that her stems cells are the only means of treating Cosima's autoimmune disorder.
Morality Chain: Implied strongly that Sarah would be a much worse problem if she didn't have her daughter anchoring her.
Put On The Bus: Rachel has her sent to Germany in the season 2 finale.
Undying Loyalty: Season 2 strongly implies that she will do anything and everything necessary to ensure Cosima's survival, regardless of what Cosima thinks about it or how it affects anyone else.
Unwitting Pawn: She attempts to warn Sarah about one of the Birdwatchers defecting to the Dyad, but it turns out the information was false. When she actually warns Sarah, Rachel uses the opportunity to slip in and kidnap Kira.
The Mole: Alison suspects him and Aynsley to be this for her. He really is her monitor.
My God, What Have I Done?: He feels pretty distraught after learning he was monitoring his wife as a part of a cloning experiment.
He experiences this again when he accidentally shoots Leekie in the face.
Obfuscating Stupidity: Even after Alison learns about him being her monitor, he does a hell of a job continuing to act like a betrayed husband who's supposedly protecting his kids from their alcoholic mother.
Subverted, as he didn't know that she was a clone and he had no clue as to what he was monitoring Alison for. As far as he knew, he was a betrayed husband protecting his kids from their alcoholic mother.
Took a Level in Badass: Takes several when he scares away Vic by threatening to shoot him in the head, reveals that he had the safety on the whole time, and then blackmails Deangelis to stay away from his wife.
Unwitting Pawn: Was made to monitor Alison, but was told it was part of an extended sociological study. He didn't know she was a clone, and he didn't know that people would come into their house to examine her in her sleep.
Ugly Guy, Hot Wife: Not ugly per se, but he's no stud. He goes out jogging in the finale because "[she] deserves better". Really, he's meeting up with Dr. Leekie.
Your Cheating Heart: He told Alison that he'd had an affair, but this is most likely a lie to get her to drop her suspicions.
Token Minority: They are black children in a predominantly white neighborhood.
Wholesome Crossdresser: Felix dressed them up as the opposite sex while he was babysitting them. They loved it.
Played by: Natalie Lisinska
Alison's "friend" and neighbor.
Blondes are Evil: Subverted. She is not as malicious as she seems and is downright harmless compared to the real antagonists.
Cruel and Unusual Death: In the Season 1 finale, she dies in a manner worthy of Final Destination. Her scarf gets caught in the garbage disposal, causing it to slowly choke her as it's sucked in. Alison just stands there and watches her die.
Go-Getter Girl: An older version. She was involved in a lot of community activities.
Happily Married: Subverted. Her marriage looks happy and normal from the outside, but it's plagued with adultery. She gets a divorce in the finale because her husband cheated on her with Alison and that was The Last Straw.
Birth mother to two of the clones, who hails from Cape Town, South Africa. She emigrated to the UK and was hired as a surrogate by a "couple" who were really Neolutionists. After realizing the children she was carrying were to be part of a medical experiment, she escaped and gave birth to the twins, then gave them up.
A member of the police for who works with Art and Beth.
Cowboy Cop: She arrests Sarah without a warrant or probable cause in the season 2 premiere, although she soon lets her go with Art's prodding. She also continues to pursue the Katja case, even though it's officially been dropped.
Good Is Not Nice: She appears to have a particular disdain for Sarah (mainly because she tried to takeover Beth's life) , but you can't exactly say she's a bad person. Her continued pursuit of Alison and blackmail of Vic pushes her further towards moral grayness, however.
Hero Antagonist: She's trying to solve Katja's case, which puts the clones at risk of being discovered.
Inspector Javert: She continues prodding into the Katja case, long after Art has given up and later got mixed up with it. As of 2x06, she's using Vic to keep tabs on Alison.
Nightmare Fetishist: She's fascinated by the goings-on at the morgue, the more gruesome, the better. It's actually kind of adorable.
Genre Savvy: He knew Cosima had been studying clones for some time, based on the DNA she shared with him. Though he's not quite savvy enough to realize Cosima herself was the "324B21" specimen they've been analyzing the whole time.
Hopeless Suitor: To Cosima. Towards the end of Season 2, though, he appears to bear no ill will about having his crush thwarted, and he responds to Cosima's clone confession with grace and kindness.
Secret Keeper: He discovers that the stem cells used to treat Cosima must have come from a daughter or niece to be viable, which of course means Kira. Delphine demands he keep this information to himself, which makes Scott uncomfortable given his affection for Cosima. He's let off the hook early, though, as Cosima finds out anyhow in the next episode.
Undying Loyalty: He seems to do Cosima's bidding regardless of how little she offers him in terms of information or kindness, mostly because of the torch he carries for her. They do become closer at Dyad, however, and Scott seems to pledge himself to helping Cosima even though she's clearly in love with someone else. After his positive reaction to her 'coming out' as a clone, it seems he might be the truest ally she has. By the finale this extends to the other clones as well, since he helps Cosima break Sarah out of the institute.
Andrew Peckham, a.k.a. Ethan Duncan
Played by: Andrew Gillies
A man taking care of a lot of birds in a house crammed full of old papers. Actually Rachel's adoptive father, hiding from Aldous Leekie.
Adult Fear: His wife was murdered in an arson attack and their daughter was kidnapped. He's spent the last two decades in hiding.
Crazy-Prepared: Gives Kira his old copy of The Island of Dr. Moreau which also happens to contain a significant amount of his notes including, it is implied, the key to the cipher for his work.
Did Not Think This Through: The infertility sequence he added to the clones' DNA had the side effect of triggering a fatal autoimmune disorder. When he learns of this, he sets off to correct it.
Disappeared Dad: Of Rachel. Would be played perfectly straight if his DNA played a part in the clones' creation.
Driven to Suicide: He drinks poisoned tea to prevent the Dyad from accessing any more of his work.
For Science!: Was among the scientists who first created the clones, purely for scientific advancement, until the military took over.
From Bad to Worse: First, the military became interested in the cloning experiment he and his wife were part of. Then, the Neolutionists took over the Dyad Institute, which eventually culminated in his wife getting killed and his adoptive daughter stolen from him. Presently, Leekie has been looking for him, presumably to kill him. And then he discovers his daughter is a sociopath and wants his research for unethical ends, which ultimately leads to his suicide.
Break Them by Talking: Because Helena is very capable of kicking his ass, Tomas controls her through verbal and emotional abuse that borders on brainwashing.
The Caretaker: Subverted. He nursed Helena back to health after the events of episode 5, but is verbally and emotionally abusive to her. Once she recovers, he starts beating her into obedience.
The Fundamentalist: At first, he appears to represent the belief system of the Proletheans, since he's the only such character onscreen aside from the less-reliable Helena. The second episode of season 2 reveals he was an aberration, and that other Proletheans are more accepting of science than he was.
Big Bad: For Helena's season two storyline, when he's established as the leader of the Proletheans.
Bullying a Dragon: Whether through ignorance of what she's capable of, megalomania, or ideological inability to believe that a woman could be a threat to him, he spends the whole storyline behaving abusively to Helena and to other people in front of her. The sole question for the average viewer is just how long it'll take her to lose her patience and off him.
Evil Genius: He's a MIT grad with a lab hidden on his compound.
The Fundamentalist: Played with. He's a Prolethean, but studied at MIT and unlike Tomas, believes "religion without science is blind".
Groin Attack/Impaled with Extreme Prejudice: Helena stabs the embryo-implanting rod, with which he impregnated both Helena and Gracie (and likely many other women), either into his rectum or through his perineum, though thankfully we don't get to see much of it. If that didn't kill him, he probably died after Helena set the entire compound on fire.
It's All About Me/Narcissist: Heavily implied, as he believes he's entitled to impregnate many women with Helena's eggs because she a "scientific impossibility". All of them were fertilized with his sperm because, in his mind, he's the only man worthy of being their father.
Laser-Guided Karma: Impregnating his own daughter with his and Helena's embryos was a baaaad idea and led to Gracie, Helena, and Mark betraying him, with fatal results.
Old Man Marrying A Child: He marries Helena against her will. This is despite his already being married to Bonnie, who appears closer to his age.
Played by: Ari Millen
See below under The Clones of Project Castor (final section).
Only Sane Man: She's clearly not exactly sane, but she recognizes that having an unstable Helena in the same location as her also unstable daughter might not be the best idea.
Put On The Bus: Hank sent her to lure young women to the farm so he could use them as surrogates for Helena's children.
Stepford Smiler: She performs her duties, whether it be laundry or assisting in Tomas's murder or Helena's impregnation with the same unperturbed air. Her one break has been when she discovered her daughter strangled into unconsciousness and promptly screamed for her husband.
Played by: Zoé De Grand Maison
Hank's young daughter.
Abusive Parents: Henrik and Bonnie stitch her mouth shut as punishment for refusing to tell them what happened between her and Helena, and there's a chance such a thing has happened to her before. Then her father forcibly impregnates her with embryos that were fertilized by him.
Wicked Stepmother: Inverted. Gracie is Helena's wicked stepdaughter. She even tries to kill her.
The people who created the clones. 2x06, however, reveals that they hijacked the original cloning project by infiltrating the Dyad Institute, which was among the military contractors who took over the Duncans' experiments.
You Have Outlived Your Usefulness: Subverted. Marian Bowles and Rachel Duncan plot to eliminate him but Rachel decides to spare him at the last minute because she still cared for him. It doesn't prevent him from his fatal encounter with Donnie but his death is lampshaded like this in the next episode by saying he died of a heart attack.
Why Do You Keep Changing Jobs?: He has a different career depending on which cover story is most convenient. Sarah guesses that he might be Rachel's monitor as well, working for Leekie. This is later revealed to have been largely correct, except that Rachel knew about it and he was effectively working for her.
Ambiguously Evil: It's hard to tell who she's loyal to or what she wants but she seems to be allying with Sarah.
Bad Boss: Knew about and was possibly involved in the murder of Rachel's mother, but let Leekie take the fall for it.
Hidden Heart of Gold: As shady as she is, she appears to genuinely love her adopted daughter Charlotte and takes a huge risk to free Sarah and Kira from the Dyad (though there's likely more to that than just good will).
A group of male clones developed in concert with the (mostly) female clones of Project Leda. While Dyad took over Project Leda, the military took over Project Castor.
A former military man who was working for the Proletheans, although he betrays them in the end of Season 2 and runs off with Gracie. It is strongly implied that he has no idea that he himself is a clone for Project Castor.
The Brute: He does the field work for the Proletheans.
Faux Affably Evil: In his first appearance, he tries to be polite to Sarah in his own creepy way, before quickly killing a Badass Bystander cook and violently trying to kidnap Sarah.