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Abby Mills: The Good Girl
Played by: Elaine Cassidy
The Sheriff's daughter, Abby's mother was murdered by John Wakefield in the 2001 massacre. Her father sank into a deep depression after this and sent Abby to live with her grandmother in L.A. Seven years later, she returns to Harper's Island to celebrate her best friend Henry's wedding. She is the central motivation for the Wakefield-Dunn killings. Henry betrays his father and mentor in order to fulfill a Childhood Marriage Promise made years before. Did we mention Abby is Henry's half-sister? Well, she is. Abby survives the massacre.
- Action Girl: Of a sort. She does manage to kill Henry after all.
- Action Survivor: Makes it to the end of the series along with Jimmy, Shea and Madison.
- Brother-Sister Incest: Averted, much to Henry's dismay.
- Childhood Marriage Promise: She made one with Henry. That went well.
- Dark and Troubled Past: Her mom (along with several other people) was murdered by John Wakefield in 2001, and her relationships with both her father and boyfriend were (almost) completely destroyed in the process.
- Final Girl: Let's see... 25 year old virgin? Check. Pretty young lady? Check. Incorruptible Pure Pureness factor? Check.
- Pinball Protagonist: Despite being the focus of the story, she actually doesn't do much aside from uncovering information and looking shocked at the events happening around her... until the events of the finale, where she kills Henry.
- Sole Survivor: Sort of. She's one of the only four survivors of the massacre.
Henry Dunn: The Groom
Played by: Christopher Gorham
The lucky groom. Henry used to summer on Harper's Island with his family. It was there that he met his future fiancee, Trish Wellington...when cleaning her father's boat. Henry is best friends with Abby, and has been since they were little. Henry is the son of John Wakefield, and the murderer out of the 25 characters. He is killed by Abby in Episode 13.
- Alas, Poor Villain: The writers intentionally made his death extremely sad.
- Ax-Crazy: In addition to being a psycho in general, he literally uses an ax on Reverend Fain.
- Big Bad Duumvirate: With John Wakefield, his dad, until...
- Big Bad: He becomes this after killing his father.
- Brother-Sister Incest: Tries to pull this off with Abby. It doesn't really work out for him.
- Famous Last Words: "Abby? But...I love you..."
- Hero Killer: Seeing how he's one of the two killers, he directly murders over half the cast.
- Impaled with Extreme Prejudice: How Abby kills him.
- The Leader: Takes over as the unofficial leader of the group after things really go bad. In reality, he's orchestrating everything with Wakefield.
- Nice Guy: What he projects himself as, at least.
- Villain Protagonist: For the majority of the series he gets the second most focus behind Abby. Then we learn the truth about him..
- Villainous Breakdown: Has one when Abby screams that she doesn't want him. You can tell he's crossed the Despair Event Horizon.
- Walking Spoiler: No kidding.
- Would Hurt a Child: Claims that Madison (as well as her mother) escaping the island "wasn't part of the plan", implying that he would have had no qualms killing her along with everyone else.
- Yandere: Big time.
Trish Wellington: The Bride
Played by: Katie Cassidy
The bride of the wedding. She's completely devoted to Henry and proves to be pretty competent when events take a turn for the worse. In Episode 12, she's killed by Henry after he reveals himself as (one of) the killer(s).
- Betty and Veronica: Henry's Betty.
- Blood-Splattered Wedding Dress: When Henry kills her.
- Break the Cutie: After her dad dies.
- Character Death: Henry stabs her in the side.
- Daddy's Girl: She is devoted to her father and is much more upset than Shea when he dies.
- Final Girl: Averted.
- Hidden Depths: She initially appears as a not-so-intelligent rich girl with overly romantic ideals. Turns out she can take care of herself, use a shotgun without much trouble, and is one of the characters who truly takes charge in the last act.
- Missing Mom: Her mother, Vanessa, died several years before the show starts. How is never elaborated on.
- Ms. Fanservice: Doesn't flaunt it around like Chloe does, but it's still there.
- Spoiled Sweet: A genuine sweet person, averting the stereotypes usually brought up with rich characters.
Chloe Carter: The Flirt
Played By: Cameron Richardson
One of Trish's bridesmaids. She is flirty, fun, and devoted to her boyfriend Cal. She also has an odd obsession with serial killers, most particularly John Wakefield.
- Beta Couple: Half of it, with Cal.
- Better to Die Than Be Killed: She kills herself by falling from a bridge after Cal is murdered, telling Wakefield he can't have her.
- Famous Last Words: "You can't have me".
- Hidden Depths: Much cleverer than she appears, and not quite as vapid.
- Ms. Fanservice: She ends up in her underwear exponentially more than any other woman in the show. Which makes sense, since she's 'the flirt' and all that.
- Nightmare Fetishist: She has a fascination with the Wakefield murders, though once she's actually surrounding by Wakefield murders she becomes quickly disenfranchised.
- Single Woman Seeks Good Man: It's implied that she loves Cal so much because he treats her like a real person, unlike her numerous other boyfriends.
- The Tease: Flirts with Marty and Sully but is really devoted to Cal.
Cal Vandeusen: The Outsider
Played By: Adam Campbell
Chloe's boyfriend and her 'plus-one' at the wedding. An English medical doctor, he is a stranger to the rest of the wedding party.
- Beta Couple: Half of it, with Chloe.
- Hair of Gold, Heart of Gold
- Impaled with Extreme Prejudice: How Wakefield kills him.
- Lost Wedding Ring: Well, engagement ring. Chloe unwittingly tosses it into the ocean in the first episode and it isn't recovered until Episode 6.
- The Medic: Patches up Charlie's spear-wound and Henry's injured leg, though he professionally works only on dead people.
- Nerds Are Sexy: His appeal. Both Chloe and Stacey the Stripper point it out.
- Nice Guy: Easily one of the nicest characters on the show.
- Odd Couple: Eventually becomes friends with Sully, who saves his life, despite spending the first few episodes as rivals for Chloe's affections.
- Say My Name: He calls for Chloe all over the place in "Splash". Her name is also his last word.
- Senseless Sacrifice: He sacrifices himself so that Chloe will have time to run from Wakefield, but she still kills herself moments later.
- Took a Level in Badass: "I am a doctor and I am ordering you to get to the boat!"
Jimmy Mance: The Old Flame
Played By: C.J. Thomason
Abby's high school sweetheart and ex-boyfriend. He never quite got over her leaving so suddenly after the Wakefield murders and is intent on reconnecting with her when she's in town for the wedding. He is one of the four survivors of the series, escaping with Abby.
- Not Quite Dead: He is presumed dead in the marina explosion, but this is disproved not long after when his unconscious body is delivered to the Cannery.
- Odd Friendship: Two, actually. He's friends with Charlie, who didn't really like him when he was dating Abby. He's also friends with local Jerkass Shane who he works with and defends at all costs.
- Nice Guy: Amiable and friendly, he gets along with just about everyone he has screentime with, and sticks by his friends to no end. Mixes with Dogged Nice Guy in his pursuit of Abby.
- Promotion to Opening Titles: In Episode 5.
- Red Herring: He is the third character to be outright made a suspect, and it's implied to be the only reason Wakefield let him live that long.
- Satellite Love Interest: He doesn't really have much personality outside of wanting to get back with Abby. Shane even calls him out on it once or twice.
- The Scapegoat: Henry intended him to serve this purpose, signing a confession to the murders so he and Abby could live their 'happily ever after' on the island, presumed dead.
- Single-Target Sexuality: He hasn't dated a single other girl in the seven years since Abby left.
- Sole Survivor: Sort of. He is one of four survivors of the series, along with Abby, Shea, and Madison.
Sheriff Charlie Mills: The Sheriff
Played By: Jim Beaver
- The Alcoholic: Driven to drink after his wife's death. Apparently he was an angry drunk and blamed Abby for what happened, something he now regrets.
- Badass: Obviously.
- Dirty Cop: Put Wakefield away on false charges to keep him away from stalking his wife which caused his rampage.
- Famous Last Words: "I love you so much..."
- For Your Own Good: His initial justification for sending Abby away, which he later regrets.
- My Greatest Failure: Sending Abby away after Sarah's murder. Also, sending Wakefield to jail on inflated charges, unwittingly leading to the first massacre.
- Neck Snap: Wakefield's deathtrap hangs him.
- Odd Friendship: With his daughter's ex-boyfriend Jimmy. They meet every week for breakfast.
- Reasonable Authority Figure: He mostly defies the horror movie cliche of Police Are Useless, although this is zigzagged at points.
- Room Full of Crazy: His attic, where he keeps evidence and paraphernalia relating to Wakefield and Wakefield-related murders.
- Rube Goldberg Hates Your Guts: Wakefield puts him in an elaborate deathtrap that is designed to snap his neck. It works.
- Police Are Useless: Zigzagged. Charlie is intent on solving the murders, but witholds important information Wakefield being Not Quite Dead from the other characters, which leads to several deaths.
- Promotion to Opening Titles: In Episode 5.
- The Sheriff: Obviously.
Thomas Wellington: The Father of the Bride
Played by: Richard Burgi
Trish's father, and the CEO of a major commercial real estate firm. He is a self-made man, and the ultimate Determinator, completely committed to getting what he wants, including stopping his youngest daughter's wedding. He is killed with a head spade booby trap during the wedding rehearsal in Episode 5. His death is a major turning point in the series, and officially closes off the 'happy and carefree' part of the show.
- Corrupt Corporate Executive: Not in his actual business, per se. It's just that he applies a lot of the same tactics to his family life.
- Cassandra Truth: Tells Trish in Episode 5 that he doesn't trust Henry based on "instinct". He's absolutely correct in these assumptions.
- Cuckold: His wife Katherine is sleeping with his son-in-law. Trish tells him about the affair in Episode 5, but he dies before he can do anything about it.
- Death by Looking Up: Looks up just in time to see the head spade come down on his face.
- Give Away the Bride: His role in the wedding ceremony of course, and the manner of his death in the rehearsal.
- Impaled with Extreme Prejudice: His death is this trope.
- Jerk with a Heart of Gold: Very cold to most people, but he's fiercely protective of his daughter. He also becomes a lot more likeable in retrospect when you realize he was totally right about not trusting Henry.
- Overprotective Dad: Crosses over with Well-Intentioned Extremist. He is so driven to protect Trish that he sets out to break up her wedding by reuniting her with her Jerkass ex-boyfriend.
- The Patriarch: Of the Wellington clan. One of the reasons his death is so jarring.
- Sacrificial Lion: His death is a major turning point in the show, and it lets the characters know there's a killer on the loose.
- Surprisingly Sudden Death: His death is very sudden and shocking, especially to the characters since by that point they didn't even know there was a killer on the island.
Hunter Jennings: The Other Man
Played by: Victor WebsterTrish's ex-boyfriend from college who, was apparently scared off by Henry after the couple broke up. However, Daddy Wellington is paying him to come back to the island in order to break up the relationship between Henry and Trish. He finally gives up and is paid an extra fee by Mr. Wellington to leave the island... and is killed by a rigged shotgun planted in his boat.
- Affably Evil: Not "evil" per se, but he's absolutely charming and handsome to people who don't know him well.
- Asshole Victim: Definitely had it coming.
- Boom, Headshot: Courtesy of a rigged shotgun.
- Chekhov's Gun: After he dies, the discovery of his boat sets off a subplot involving Malcolm and the rest of the groomsmen.
- Filler: His character and its associated subplot is only around for the first three episodes (and very briefly in the first two, at that). Hunter's whole character is a Red Herring, and his death only serves to set up the groomsmen bag of money storyline.
- Jerkass: He's a total asshole.
- Mauve Shirt: Dies in Episode 3.
- Mock Millionaire: Originally supposed to be this, but the scene revealing it was cut for time. Hunter family was supposed to have disinherited him for some indiscretion, which would have necessitated his dependence on Mr. Wellington's money. Katherine would have showed Thomas this information, which would have led to Hunter's expulsion from the island.
- Narcissist: He loves no one but himself, and really couldn't care less about Trish, so long as he gets paid.
- Noodle Incident: Whatever exactly happened 'in college' that led to Trish breaking up with Hunter and returning to Henry. It was presumably very unpleasant.
- Stalker Without A Crush: Crosses over with Only in It for the Money.
- What Happened to the Mouse?: Something of a meta example. He is the only character among the 'early outs' to never be mentioned after his death. Probably because so few characters knew he was on the island, and the ones who found his body didn't know who he was.
J.D. Dunn: The Black Sheep
Played by: Dean Chekvala
Henry's unstable younger brother. Suicidal, outcast, and antisocial, he was extremely shaken by his parents' deaths and finds it difficult to connect with anyone after that. He is killed by Henry in Episode 8, and it is heavily implied that killing J.D. was most difficult for Henry.
- Bad Butt: He doesn't really do anything 'disturbed' or 'crazy' unless he's provoked. Outside of that, the worst he really does is set off firecrackers with a nine-year-old girl.
- Bar Fight: With Shane in Episode 1. Abby breaks it up.
- Birds of a Feather: With Kelly.
- Black Sheep: A truly sad example. Everything he's accused of has actually been done by his brother, who is the seemingly "normal", popular, and well-liked one, not to mention the fact that he's not even his brother
- Cain and Abel: He is murdered by his own brother. Although technically Henry isn't really his brother...
- Character Death: Henry stabs him.
- Clear My Name: When he becomes a chief suspect in the murders, he leads a short-lived investigation with Abby and Henry to prove that Wakefield is still alive and killing again.
- Famous Last Words: "It's all about you Abby...all about you." Which is very badly misconstrued by the other characters.
- Gutted Like a Fish: How he dies, and on the docks to boot.
- Icy Blue Eyes: He has them.
- Knife Nut: He carries a switchblade with him, though he never uses it.
- Loners Are Freaks: A tragic part of his character.
- Odd Friendship: With Madison. He's her only friend on the island. Well, besides Wakefield...
- Red Herring: The second character to be explicitly made a suspect.
- Suicide Pact: Had one with his girlfriend. It didn't exactly work however, and J.D was saved while his girlfriend died.
- Tattooed Crook: While not a 'crook' per se, J.D is covered in tattoos to emphasise his rebellious antisocial nature.
- Troubled, but Cute: He's still pretty likable despite his issues.
- Used to Be a Sweet Kid: According to the flashback in Episode 13.
Christopher "Sully" Sullivan: The Best Man
Played by: Matt Barr
The best friend of Henry Dunn, and best man at his wedding. He is fatally stabbed by Henry in Episode 13, and officially the last of the wedding guests to die
- Blond Guys Are Evil: Not evil per se, but initially he is a bit of a Dirty Coward, being perfectly willing to abandon a child on an island where people are dying to save his own skin and a Handsome Lech. He gets better
- The Casanova: He chased Trish in college, chases after Chloe in the early episodes, clearly wouldn't mind spending some time with the other bridesmaids, has been trying to sleep with Abby for years and even snags a quick Now or Never Kiss from Nikki. However...
- Casanova Wannabe: He never actually gets together with anyone, despite his efforts. Of the principle male characters he's the only one without a love interest of some kind.
- Character Development: He has the most definite character arc of the 25 characters. As a matter of fact, he gets more character growth than some of the principles.
- Childhood Friends: With Henry. One of the reasons Henry's confession breaks him so badly.
- Dirty Coward: When Madison is kidnapped, Sully is the most vocal about leaving her behind in favor of going home, going so far as to attempt escape with Cal, Chloe, and Beth.
- Four Temperment Ensemble: Among the groomsmen, he's Choleric.
- Fratbro: At first, but he develops Hidden Depths.
- Heterosexual Life-Partners: With Henry, and to a lesser extent Danny.
- In the Back: Literally and figuratively by his best friend
- Jerkass: At first.
- The Lancer: In the latter half of the show, Sully takes this role, occassionally sharing it with Jimmy.
- The Leader: Of the groomsmen.
- Redemption Equals Death: He lets Shea and Madison leave the island without him, intending to stay behind until Henry gets back. Ironically, Henry is secretly the murderer and ends up killing him.
Marty Dunn: The Uncle
Played by: Harry Hamlin
Henry and J.D.'s uncle, and J.D's legal guardian since his parents' deaths. He's fun-loving and acts much younger than he is, and is completely devoted to Henry and his impending wedding. He is killed in the first episode, and is the first of the 25 characters to die.
- Briefcase Full of Money: Marty brings a bag of $250,000 dollars to the island, which changes hands several times following his death.
- In Episode 13 Henry reveals that the money was supposed to be for Malcolm to help him start up his brewery. He planted the bag on Hunter's boat with the intent of Malcolm finding it, just For the Evulz.
- The Casanova: Very much a skirt chaser. He's only shown on screen with Chloe, but he's apparently such a hit with the ladies that a random fling is a believable enough excuse to explain his absence once he's dead.
- Character Death: Wakefield ensures that he doesn't last the first episode.
- Cool Old Guy: A mild example, but a good one nonetheless
- Cool Uncle: To JD and Henry. Well, actually only JD
- Dead Star Walking: One of the biggest names in the cast, he's dead by the end of the first episode.
- Exact Eavesdropping: He overhears Thomas conspiring with Hunter about breaking up the wedding, making him one of a very select group of people who knew Hunter was on the island. Of course, He's killed that same night, before he can do anything about it.
- Floorboard Failure: As he's crossing a footbridge in the woods, the boards suddenly give out underneath him, allowing him to be neatly cut in two.
- Foil: To Mr. Wellington.
- Half the Man He Used to Be: Bifurcated on a bridge, thanks to John Wakefield
- Honorary Uncle: He insists everybody call him 'Uncle Marty', whether they like it or not.
- Large Ham: Probably why he's a fan favorite despite only appearing the the first episode.
- Incoming Ham: His first scene has him show up with a Mariachi Band, doing a Mexican hat dance, screaming "Olé!" at the top of his lungs and declaring that "For the entire week, it's gonna be Uncle Marty for everyone!"
- Life of the Party: See Incoming Ham.
- Red Herring. Everything to do with his character, really. The bag of money, the gun, his business in 'sales', his determination to see the wedding happen.... This makes his death in the first episode all the more shocking.
- Secret Keeper: A possible interpretation is that Marty was the only one who knew that Henry was adopted. It could very well explain why he was killed so early on, before suspicion could take root.
- We Hardly Knew Ye: The first of the 25 major characters to die.
Shea Allen: The Maid of Honor
Played by: Gina Holden
Trish's big sister and the matron of honor. She escapes the island with Madison in Episode 13 and is one of the four survivors of the massacre
- Action Survivor: Survives to the end of the series, along with her daughter, Abby, and Jimmy.
- Break the Cutie: By the end of the series she's lost her father, husband, stepmother, sister, and many of her close friends.
- The Generic Girl: She doesn't really get a great deal of depth.
- The Load: Doesn't contribute a whole lot to the group, although unlike her daughter she never gets any Nice Job Breaking It, Hero moments.
- Housewife: Is implied to be this, as her husband works a very demanding corporate job.
- Mama Bear: Very protective of Madison, to the point where she unwittingly hinders several important revelations in the third act.
- Missing Mom: Like Trish, her mother died a few years before the story starts. She isn't quite as resentful of her new stepmother Katherine, though.
- Sole Survivor: Sort of. She's one of the only four survivors.
- Trauma Conga Line: A particularly brutal one, which crosses into Take That, Scrappy! for some fans. Within a space of 24 hours she watches her father die, learns about her husband's affair with her stepmother, discovers her daughter is kidnapped and learns that her husband is dead and her daughter is being held for ransom.
Richard Allen: The Brother-in-Law
Played by: David Lewis
Shea's husband and the brother-in-law to Henry and Trish. He is secretly having an affair with Katherine, and is impaled by a harpoon shortly after his secret comes out.
- Asshole Victim: While he wasn't the biggest asshole on the show, he was definitely marked for death after his affair was revealed.
- Bondage Is Bad: Richard isn't exactly portrayed in a sympathetic light, and his BDSM session with Katherine in Episode 4 is portrayed as something quite sinister.
- Casanova Wannabe: He has an implied flirtation with Lucy in Episode 2 and quite noticeably is oogling Chloe under Cal's nose in Episode 3. His efforts get him nowhere, which undoubtedly fuels his inferiority complex.
- Divorce Assets Conflict: Richard was clearly anticipating custody troubles with Madison after the affair was exposed. He's on the phone with his lawyer when he is killed.
- Impaled with Extreme Prejudice: Henry shoots him with a harpoon gun.
- Jerkass: He's quite the asshole, cheating on Shea with little regard to how it'll affect her and his daughter.
- Jerk with a Heart of Gold: A possible interpretation of his character, as his love for Madison is genuine.
- Red Herring: Briefly becomes a suspect, although these concerns are put to rest when he dies in episode 6.
- Revenge: His reasons for sleeping with Katherine are mostly rooted in sticking it to Thomas rather than betraying his wife.
- Villainous Rescue: When he saves Trish from the closing pool in Episode 4. This crosses over into Deus ex Machina as he sort of just comes out of nowhere with an unsettling rapidity.
- What Happened to the Mouse?: The articles on the Wakefield murders he requested from Harper's Globe. Katherine shows them to Charlie in Episode 6, which suggests Richard might be the Wakefield copycat. However, he dies the same episode and the articles are never brought up again.
- Your Cheating Heart: He is cheating on Shea with Katherine.
Madison Allen: The Flower Girl
Played by: Cassandra Sawtell
The young daughter of Shea and Richard.
- Action Survivor: Makes it out alive.
- Break the Cutie: By the end she's lost almost everyone close to her.
- Can Not Spit It Out: She knew Wakefield was alive from the beginning, but doesn't reveal anything until it's too late. She also lies to everyone on Wakefield' s orders, turning everyone against Sheriff Mills because it's part of 'the game'.
- Creepy Child: She can come off as really creepy, to the point where it seems like she knows more about what's going on than the others.
- Creepy Monotone: She slips in and out of one throughout the series.
- Dead Person Conversation: In Episode 4, Madison claims that 'the spirits' told her there wasn't going to be a wedding. However, it is more likely that it was Wakefield she was talking to, and she merely believed she could talk to ghosts.
- Infant Immortality: Being the youngest character, she obviously survives.
- Kids Are Cruel: She's awfully spiteful beneath all of her Creepy Child tendencies. She kills small animals, rips up flower beds and, according to Katherine, often hides from her parents to get attention.
- The Load: Not only is she useless, but she causes some problems as well (see Nice Job Breaking It, Hero).
- Nice Job Breaking It, Hero: Caused several deaths by withholding information from the group because she was "scared".
- Not Now, Kiddo: When the gang is holed up in The Cannery, Madison sees Wakefield approaching. She tries to warn the others but gets this response. Nikki ends up dead not a minute later.
- Tagalong Kid: The only child in the cast.
- Sole Survivor: Sort of. She's one of the only four survivors.
Katherine Wellington: The Stepmother
Played by: Claudette Mink
The wife of Thomas Wellington and stepmother to Trish and Shea. She is having an affair with Richard and, as a result, is outcasted by the Wellingtons afterward. She is killed in Episode 9.
- The Atoner: After her affair is exposed, Madison is kidnapped and Richard is found dead, Katherine does try a few times to make up for her crimes against her stepdaughters. She helps Trish and Shea make tea, tries to assure her that Madison will be found, and attempts to keep Shea from going out and doing something rash in the search for her daughter, to no avail.
- Bondage Is Bad: While Katherine isn't as outright villified for her part in the affair, she is still scene as an object of disdain by Trish, and her BDSM session in the basement is portrayed in a sinister manner.
- In the Back: Is stabbed in the back with pruning shears by Henry, through a couch no less.
- Jerk with a Heart of Gold: Despite her affair with Richard, She genuinely cares about Thomas and Madison. She tries to explain this to Trish and Shea, but they rebuff her for obvious reasons.
- Killed Offscreen: Is murdered offscreen by Henry. Shane finds her body.
- Lady Drunk: She hits the bottle hard after the affair is exposed.
- Lonely Together: With Shane in Episode 9. They share a drink at the bar and evidently got along well enough to keep each other company while everyone was running around not trusting them. Shane is the only witness to her death because of this.
- Mauve Shirt: She never really gets much screentime or personality before dying.
- Indeed, while Richard's motivations for engaging in the affair are stated clearly to be Revenge against Thomas for mistreating him, Katherine's motives are never even brought up, though it is implied she may simply have been bored in her marriage, and Richard was just an outlet for excitement.
- May-December Romance: With Thomas, though the 'romance' part is debatable.
- According to the list of bridal party members Shea gives to Karina for the bachelorette party, Katherine is barely a week older than Shea.
- Trophy Wife: Her whole aesthetic, of course.
- Your Cheating Heart: Is having an affair with Richard.
Danny Brooks: The College Buddy
Played by: Brandon Jay Mc Laren
A groomsman and, like Sully, Malcolm and Booth, one of Henry's fraternity brothers.
- Badass: One of the only characters to put up a fight against Wakefield, although he still ends up losing.
- Black Best Friend: To the other groomsmen.
- Black Dude Dies First: Totally averted. He dies in the penultimate episode.
- Dying Moment of Awesome: He does not go down easy. Wakefield even acknowledges that he put up a good fight.
- Eye Scream: Wakefield impales him through the eye with a memo holder.
- In the previous episode, Danny is almost run through the eye with a metal pole while he and Sully barricade the tunnel entrance in the Candlewick kitchen. It's possible Wakefield improvised Danny's eventual death because of this moment.
- Four Temperment Ensemble: Among the groomsmen, he's Phlegmatic.
- The Generic Guy: Sadly, although Danny is around for a while he never gets much personality aside from being nice.
- Heroic Sacrifice: Fights Wakefield to allow Shea and Madison to escape.
- The Lancer: Of the groomsmen, next to Sully as The Leader, Malcolm as The Funny Guy and Booth as The Smart Guy.
- Laser-Guided Karma: He confides to Henry that he believes the wedding party is on the receiving end of this for taking the bag of money off the boat. Henry rebuffs this, saying he doesn't believe life works that way. Henry would know, of course.
- Nice Guy: One of the nicest characters on the show.
- Token Minority: At least he doesn't die first.
- Unstoppable Rage: He goes berserk when Malcolm confesses to accidentally getting Booth killed.
Malcolm Ross: The Hustler
Played by: Chris Gauthier
One of the groomsmen and, like the other three, was part of the same fraternity with Henry. Since graduating, Malcolm has been trying to get his home microbrewery Sacred Turtle off the ground, but has so far been unlucky in finding a sponsor, and is now drowning in debt.
- Aborted Declaration of Love: Seems to be what happens in Episode 7, when Malcolm is too busy trying to hide the money to spend a minute or two talking with a tragically disappointed Beth.
- Disposing of a Body: When Booth shoots himself, Malcolm buries him in the woods. He ends up being killed before he can reveal where he put the body.
- Four Temperment Ensemble: Among the groomsmen, he's Sanguine.
- The Funny Guy: Of the groomsmen, next to Sully as The Leader, Danny as The Lancer and Booth as The Smart Guy.
- Heel–Face Door-Slam: Just when he decides to man up and burn the money, he is murdered.
- I Did What I Had to Do: He is deep in debt and uses it as an excuse to take the suitcase full of money in Hunter's boat.
- Life of the Party: He brings his own beer, is full of laughs, and looks forward to the debauchery of the bachelor party, though he is unfortunately unable to attend it.
- My God, What Have I Done?: He is plagued with guilt after accidentally getting Booth killed.
- Nice Job Breaking It, Hero: So many problems could have been avoided if he just hadn't taken Hunter's suitcase. Namely, Booth wouldn't be dead.
- Off with His Head!: His head is chopped off and thrown into the fire.
- Stepford Smiler: His funny guy, party animal veneer is all a projection to hide a very desperate and depressed man who just can't get a break financially.
- There Is No Kill Like Overkill: He is hacked to pieces by Henry, and his head and limbs are tossed into an incinerator.
- Turtle Power: Malcolm's home-brewed beer, Sacred Turtle.
Joel Booth: The Nerd
Played by: Sean RogersonOne of the groomsmen, and therefore part of the same frat from college. Booth is something of a hypochondriac, and his seasickness and social awkwardness make him a subject of good-natured ridicule from his friends.
- Butt Monkey: Things really don't go well for him.
- A Death in the Limelight: Gets a lot of focus in episode 4 before dying.
- Forgotten Fallen Friend: Of a sort. After Malcolm confesses the truth of Booth's death to Sully and Danny, they arrange to tell the Sheriff. Malcolm is killed shortly afterward, and neither Sully nor Danny ever bother mentioning Booth's death to anybody else.
- Four Temperment Ensemble: Among the groomsmen, he's Melancholic.
- Hollywood Nerd: Has all the qualities of a stereotypical nerd.
- Hypochondria: His character bio styles him as one, though the only element of hypochondria Booth displays is his seasickness.
- I Just Shot Marvin in the Face: He accidentally shoots himself in the leg with his gun when Malcolm surprises him. While he doesn't feel anything at first, he abruptly collapses and bleeds to death.
- Mauve Shirt: Little more than a background character in the first three episodes, he gets some characterization in episode 4 before dying.
- Nervous Wreck: Become one during the debacle with the money.
- Only a Flesh Wound: Averted; while it took a minute for him to die that shot to the leg was fatal.
- The Smart Guy: Of the groomsmen, next to Sully as The Leader, Danny as The Lancer and Malcolm as The Funny Guy.
Beth Barrington: The Single Girl
Played by: Amber Borycki
Trish's dormmate from college, and one of the bridesmaids. Beth isn't from the same elite social circle as Trish, Lucy and Chloe, but doesn't let that affect their friendship.
- Aborted Declaration of Love: Seems to be what happens in Episode 7, when Beth comes up to Malcom's room to thank him for comforting her, and Malcolm is too busy trying to hide the money to spend much time with her.
- The Chick: Once the situation takes a turn for the worse, Beth begins hanging around the groomsmen, possibly because of her crush on Malcolm.
- The Generic Girl: See Red Shirt.
- Half the Man He Used to Be: Danny only finds half of her body, minus an arm.
- Nice Girl: From her limited screentime, she seems to be pretty pleasant.
- Killed Offscreen: She goes missing and her bisected corpse is later found by Danny.
- Living Prop: She appears in all nine episodes before her death, but has no lines inn two of them and minimal roles in every other episode.
- She has a brief story arc regarding a flirtation with Malcolm, and a growing sense of despair as the situation on the island gets worse, but neither one comes to anything.
- Red Shirt: The biggest on the show. She sticks around for a good portion of the show but despite this, she practically blends into the background and has literally no personality or discernible character traits. It became a Memetic Mutation in the fandom to say "who the hell is Beth?" when she goes missing.
- Shrinking Violet: A possible in-universe explanation for her always hanging about in the background, never saying very much. She's only sort of comfortable around Trish and Lucy, and it takes her awhile to get used to the others.
- Tomboy and Girly Girl: The Tomboy to Lucy's Girly Girl.
- Trail of Blood: When Beth is discovered to be missing, the others follow implausibly long trails of blood into the bootlegging tunnels, inevitably leading to the crawlspace she died in.
- It's suggested that not all of the blood is Beth's own, and Wakefield used other samples as red herrings just to split the groups up.
Lucy Daramour: The Socialite
Played by: Sarah Smyth
A bridesmaid and one of Trish's childhood friends.
- Canine Companion: Her teacut/poodle mix, Gigi. She carries her around wherever she goes.
- Dumb Blonde: Averted. Of Trish's friends, Lucy is the only one who ever sits her down and talks to her heart-to-heart, despite being the first of those friends to bite it.
- Friend to All Living Things: Is very attached to her dog.
- Forgotten Fallen Friend: Her absence isn't even mentioned at the bachelorette party.
- This is due to a deleted scene that would have shown Lucy planning to visit her boyfriend on the mainland briefly, before returning for the wedding. However, it was cut so Lucy's absence remains unnoticed for three episodes after her death.
- Hidden Depths: Her character bio mentions that she is studying law.
- Kill It with Fire: Wakefield sets her on fire.
- Polyamory: Believes in this principle. When she contemplates having a fling with one of the groomsmen, she tells Beth that 'eating ain't cheating'. Whether or not her boyfriend Ryan approves of this sort of thinking remains a mystery.
- Socialite: Her 'nickname' in the show's advertising. Lucy is a social butterfly, equally comfortable with the rich and privileged Trish and the lower class Beth.
- Tomboy and Girly Girl: The Girly Girl to Beth's Tomboy.
- We Hardly Knew Ye: Dies in the second episode.
Shane Pierce: The Townie
Played by: Ben Cotton
A resident of the island who is best friends with Jimmy.
- Absentee Actor: Is absent for a few episodes after getting arrested, though he's back by Episode 8.
- Asshole Victim: Surprisingly averted. He manages to redeem himself in his last moments.
- Badass: For all his faults, he puts up a good fight against Wakefield and even manages to briefly survive being impaled.
- The Bully: To JD.
- Domestic Abuse: Toward Kelly, before and after their breakup.
- Heroic Sacrifice: Fights Wakefield so that the others can get away. After being impaled, he uses his last ebb of life to distract Wakefield once more so that Trish and Chloe can sneak through a window.
- Redemption Equals Death: All of this was pretty surprising considering how much of a dick he had been earlier.
- Impaled with Extreme Prejudice: His ultimate fate, though...
- Jerkass: He's an aggressive jackass to just about everyone.
- Kick the Dog: Mocks JD's suicide attempt and the death of Abby's mother.
- Libation for the Dead: When Jimmy is presumed dead in the marina explosion Shane helps himself to a bottle of scotch at the Cannery. When Henry asks him why he's drinking it if he doesn't like it, Shane says that Jimmy drank scotch and he's drinking in his memory.
- Lonely Together: Shane and Katherine share a few drinks at the Candlewick bar in Episode 9, shortly before Katherine's death.
- Odd Friendship: With Jimmy, considering Jimmy's a Nice Guy and Shane's a Jerkass.
Kelly Seaver: The Outcast
Played by: Anna Mae Routledge
Shane's ex-girlfriend. Her mother was one of the victims of the 2001 Wakefield massacre.
- Broken Bird: Her mother's death kicked off a series of misfortunes for her, making her a local outcast and leading to several suicide attempts.
- Cassandra Truth: Everyone thought she was crazy when she claimed Wakefield was still alive.
- Domestic Abuse: Was abused by her boyfriend Shane, before and after they broke up. When Nikki tried to convince her to get a restraining order against Shane, Kelly refused.
- Goth: Her wardrobe and makeup reflect this.
- Hope Spot: Abby agrees to let Kelly live with her in L.A., she hooks up with J.D., and even calls this the best day ever. Nikki finds her hanging from the rafters that same night.
- Killed Offscreen: She is hanged by Wakefield and her body is found hours later.
- Loners Are Freaks: Probably why she quickly hits it off with JD.
- Never Suicide: Her death is initially assumed to be a suicide, but it becomes clear that she was murdered.
- We Hardly Knew Ye: Dies in the second episode.
Nikki Bolton: The Biker Chick
Played by: Ali Liebert
The owner and manager of The Cannery, Harper's Island's local dive bar, and an old friend of Abby's.
- Absentee Actor: She appears sporadically in the first few episodes, then vanishes almost completely once the situation gets serious. She returns in episode ten, only to be killed in the next episode.
- Badass Biker: The impression she gives off, although we never really see her in action.
- Flat Character: While not as much of a Living Prop as Beth, Nikki has few traits besides being a spunky bartender and a talk-to for Abby. She seems to exist just so the Cannery can have somebody to run it.
- Impaled with Extreme Prejudice: How Wakefield kills her.
- Informed Attribute: The advertising for the show called her 'The Biker Chick' of the group, but she doesn't seem to own a bike and never even mentions one.
- Now or Never Kiss: When Sully and Cal are leaving to find the sailboat, Sully gives Nikki one of these. It is there first interaction and nothing comes of it since Nikki is killed before Sully returns.
- Unwitting Instigator of Doom: Her arrival at The Cannery in Episode 10 is this for Maggie as it inspires her that the killer isn't after locals, leading to Maggie's abandonment of the group and imminent death.
Maggie Krell: The Wedding Planner
Played by: Beverly Elliot
The manager of the Candlewick Inn, and Trish and Henry's wedding planner.
- Beware the Nice Ones: Charlie calls her a 'pitbull' at one point, noting her determination and drive beneath her peppy exterior.
- Determinator: In her efforts to make sure the wedding goes along without a hitch, she can be overbearing and oblivious to others. It's unsure whether or not she means to come off as abrasive, but both Charlie and Henry find her overwhelming at different times.
- The Generic Girl: One of several characters we never really learn much about.
- Hidden Depths: Though Maggie is shown to be a caring and considerate older woman, such as when she comforts Julia in the wake of the wedding rehearsal, and when she expresses relief that Madison has been rescued, she shows quite a more selfish side when it appears she can leave the group without being targeted. She's wrong, and dies for it.
- Hope Spot: For Maggie, Nikki's arrival at The Cannery in Episode 10 was this, as it indicated to her that the killer wasn't interested in the locals. In abandoning the group to this theory, however, Maggie turned out to be sorely mistaken.
- Killed Offscreen: After abandoning the group under the impression that she's safe, her hanged corpse is dropped from the roof minutes later.
- Nice Girl: She's very friendly, though it is possible this a persona she puts on as part of her job.
- Too Dumb to Live: Really, Maggie? Leaving the group based on a theory? It's no surprised when she is killed.
John Wakefield: The Legend
Played by: Callum Keith RennieA mysterious serial killer who appeared on Harper's Island in 2001 and, seemingly without motive, killed six people before being shot dead by Sheriff Mills, whose wife was one of the victims. Seven years later his presence is still very much felt on the island. In reality, Wakefield is still very much alive and is responsible for the ongoing murder spree, along with his illegitimate son Henry.
- Ax-Crazy: Obviously.
- Badass: He is very much a badass with dozens of kills under his belt.
- Big Bad Duumvirate: With his son Henry until....
- Disc One Final Boss: Gets killed by Henry in the finale.
- Domestic Abuse: Implied to have been the case with Sarah Mills, which was why she left him.
- Et Tu, Brute?: When Henry kills him.
- Implacable Man: In true slasher killer fashion.
- Never Found the Body: Sheriff Mills shot him and saw him fall off of a cliff, but never found the body and instead took the credit for killing him by putting another corpse in his coffin. Sure enough, he survived.
- Not Quite Dead: Turns out he survived his encounter with Sheriff Mills all those years ago and is one of the killers.
- Character Death: Although Henry ends up betraying him and stabbing him in the chest in the finale.
- Posthumous Character: Died years before the start of the show. Except he didn't.
- Serial Killer: He killed six people on the island prior to the start of the series, and kills many more in the actual show.
- Shrouded in Myth: He's a local legend due to his actions.
- Walking Spoiler: Knowing too much about him reveals that he's still alive.
- Weapon of Choice: Fishing-oriented weapons, most particularly a head spade and a boarding knife.