The cast of SIMULACRA and Pipe Dreams. Spoilers are unmarked.
- Karma Houdini: While your actions are well intentioned they clearly crossed some lines that put you on Villain Protagonist (i.e. false impersonation and blackmailing among others).
- Necessarily Evil: You have to pretend to be Anna if you want Ashley to be any help, otherwise she assumes you're behind it and refuses to listen, no matter how honest you're being.
- Worthy Opponent: If you get the best ending, the Simulacra acknowledges your skill at manipulating people, and lets both Anna and Taylor go out of respect for your talents.
- Closet Key: Ashley realizes that her problems with guys, especially Anna's boyfriend Greg, stem from the fact that she has feelings for Anna.
- Heroes Love Dogs: Downplayed. While Anna has a cat, she's also implied to love dogs too. One of her security questions is her favorite movie. When you set-up a fake movie night with Ashley as Anna, she'll reveal that her favorite movie is A Dog's Purpose.
- Kindhearted Cat Lover: Anna loves her cat Tobias.
- Dirty Coward: When the player asks a few people about Greg, and whether he had ever hit Anna or would try to kidnap her, they make it clear that he would never do something like that - as Yolanda puts it, "he's too chicken shit to be a criminal." And indeed, they're right.
- Hypocrite: Greg gets angry at Anna for snooping at his phone and discovering his affair with Yolanda instead of talking to him "face to face", but he didn't have the courage to break up with Yolanda personally, opting to do it via voicemail after Anna dumped him.
- Jerkass: Greg. He constantly berates you, accuses you of harming Anna with no grounds for it, and had previously cheated on Anna with a client that he nearly got pregnant, only to blame Anna for looking at his phone in the first place.
- Jerkass Has a Point: Some of the things you do, such as telling strangers on Spark personal info about Anna, and digging into Greg's personal business during your search for Anna, are pretty questionable, and Greg calls you on it. He's also right on the money that you're going to have to pretend to be Anna for Ashley to help you at all.
- Jerk with a Heart of Gold: The proper pressure will cause the abusive Greg to have a Heel Realization and confess his crimes, and genuinely wants to help you find Anna.
- Knight Templar: Greg tries to be this in pursuit of Anna, but just draws unwanted attention from the police instead.
- Never My Fault: Greg has this attitude for much of the game. After Anna confronts him about cheating, he constantly deflects and tries to turn the focus to the fact that she looked through his phone, and continues to act like she was the unreasonable one even after she's disappeared. He seems to eventually have a turnaround if you follow the correct path, and turns himself in to the cops for his various crimes.
- Love Epiphany: Ashley has one towards Anna near the end of the game. Prior to this revelation, it's apparent that both of them had exclusively dated men.
- Only Sane Woman: Ashley is the only character to suggest that you go to the police and hand over the phone that belongs to a missing person, instead of spending hours messaging people and trying to find clues of Anna's whereabouts, if she figures out that the person she is speaking to is not her friend. She will also threaten to call the police under the belief that you had a hand in Anna's disappearance, which is not entirely unreasonable given that it is possible for the player to pretend to be Anna in order to communicate with Ashley. Unfortunately for Ashley, there would not have been enough time for the police to track down Anna before she kills herself while under the influence of the Simulacra.
- Karma Houdini: If you choose not to report him for sexual harassment.
- Laser-Guided Karma: Anna's coworker Murv constantly comes onto her, sending her creepy emails and harassing her to the point that she files an official sexual harassment report. When posing as Anna to the woman from HR, you can have her send the report through and get Murv fired.
- Dead All Along: James Aulner was killed before the game begins. Not that this wasnt already clear to the player, but poor Anna didn't know.
- Good All Along: It seems like he might just be the game's Big Bad for a while with him reaching out to you with cryptic warnings and whatnot along with the fact that he seemingly stalked Yolanda and Anna and made Anna disappear (and presumably tried to do the same with Yolanda), but in reality it was the Simulacra that lured Anna out, not James, and really he's simply just trying to reach out to you and warn you not to trust the Simulacra.
The titular antagonist of the game. It is a digital entity absorbing souls into itself because it believes it is creating a digital utopia. The sequels reveal it is one of many Simulacras.
- A.I. Is a Crapshoot: While not technically an A.I., the Simulacra is some sort of digital creature that poses as real people on Spark in order to lure in victims which it can absorb into its growing consciousness.
- Antagonist Title: The Simulacra is the Eldritch Abomination villain.
- The Bad Guy Wins: In most of the endings, because you end up sacrificing either Anna, Taylor, or both of them to the Simulacra. The last ending, where both of them live, is the only one that doesn't end in a complete victory for the Simulacra, though it is still unharmed.
- Big Bad: It is responsible for Anna's disappearance.
- Blue-and-Orange Morality: The Simulacra genuinely believes that absorbing people into itself will result in a utopia. It also respects the ability to influence the world, positively or negatively, through technology, and despises people who form online identities without coherency. If you prove a Guile Hero, proving yourself able to pretend to be Anna long enough to elicit a Love Confession from Ashley, it will regard you as a worthy specimen of humanity and free both Anna and Taylor as a reward.
- Comically Missing the Point: During your conversation with it, if you express how sickening the entire situation is, the Simulacra responds that they are incapable of contracting diseases. A rare moment of humor from an otherwise dead-serious antagonist.
- Eldritch Abomination: It is an entity which lies within the digital world and has the ability to possess, kill, and absorb people to create a "utopia".
- Evil Sounds Deep: The Simulacra has many voices, all them pretty deep.
- Karma Houdini: No matter which ending you get, the Simulacra is still out there.
- Noble Demon: The Simulacra is arrogant, self-centered, and greedy, but it recognizes a Worthy Opponent when it sees one-if you manage to manipulate your way into improving Anna's life by quite a bit, it starts treating you as an equal and allowing the potential Golden Ending.
- Not So Different: In the best ending, the Simulacra recognizes you as its intellectual and spiritual equal if you successfully undo its influence via manipulation, and this allows you to convince it to let Taylor and Anna go. He even almost drops the trope name outright:The Simulacra: YOU AND I ARE NOT THAT DIFFERENT.
- Pitiful Worms: It loves to refer to material lives it dislikes, such as Anna, Taylor, and every other character in the game, as worms.
- Spanner in the Works: The player is called this word for word by the Big Bad for helping Teddy beat his addiction, which prevents it from getting his soul:FlapeeBird: "Could've just let him be happy, but oh no, you just had to throw a spanner in the works."
- What the Hell, Hero?: If you send an invite to the game to Teddy's girlfriend, it opens up a conversation with her. Should you try to tell her to be more patient with him, she'll chew you out because she already tried that and it wasn't working. They break up soon after this choice is made.
- Worthy Opponent: Despite his pride about his score, Teddy challenges the player to beat it several times and treats them as a "considerable rival". It's all an act by the AI to try to trap the player alongside Teddy.
- Big, Stupid Doodoo-Head: When he confronts FlapeeBird/the Fake Teddy that's using his account.Teddy: Says you, you poopy booger butt!!!!
- Cessation of Existence: Can happen to him if you lose him to FlapeeBird.
- Shut Up, Hannibal!: Teddy does this to Fake Teddy when the three of you talk in the Ménage à Trois group chat.
- A.I. Is a Crapshoot: It is downright sadistic, mocking players as it saps their life and assimilates them.
- Big Bad: It is responsible for Teddy's strange behavior and seeks to assimilate him.
- Competition Freak: As the fake Teddy, it starts acting like one after the first time you beat its high score.
- The Computer Shall Taunt You: It is fond of insulting you whether or not you pass a segment in the game, and even ruder when pretending to be Teddy.
- Contrasting Sequel Antagonist: The Big Bad in Simulacra is a soft-spoken, male-sounding AI who congratulates you if you out-smart it and gives you exactly what you ask for. The Big Bad in Pipe Dreams is a hyperactive female-sounding AI who suffers a Villainous Breakdown when you beat the high score for the final time without resorting to its deal.
- Hate Sink: In sharp contrast to the previous game's antagonists, a polite, charismatic Eldritch Abomination, FlapeeBird is an immature, mean-spirited, and spiteful brat, being effectively every Competition Freak and Stop Having Fun Guys focused into a Psychopathic Manchild. It's super satisfying to beat it in the Golden Ending and watch as it has a tantrum.
- Inferiority Superiority Complex: Pretends to have one as Teddy, claiming that the world is isolating him while also boasting of his score in FlapeeBird.
- Villainous Breakdown: It freaks out when you defeat the high score for the final time.
- Villainous Crush: FlapeeBird is hinted to have this with both you and Teddy, considering that when the AI hijacks Teddy's messenger, it names the group chat "Ménage à Trois". It also tries to chew you out in a manner that sounds akin to a Yandere when you face it for the final time.
- "It loves me.""Why won't you just let him be happy?"