Characters: Ergo Proxy
- Amnesiac God
- Anti-Hero: He starts off as a weak-willed, low-status immigrant just trying to make good for himself.
- Bad Ass: He doesn't realize it for a long while, but once he does the gloves come off.
Vincent: " I am Ergo Proxy - the agent of death."
- Badass Creed: Are the last lines of the series, but damn - it's a badass way to close a series.
- Become a Real Boy: Like Pino in this respect and also why he hopefully will also survive on contact with sunlight.
- Beware the Nice Ones
- Berserker Tears: Vincent is prone to these while in proxy form. Usually while killing another proxy.
- Broken Tears: Several times over the course of the series. Most noteable is when Vincent is lying on the ground weeping after Proxy One forces him to face the fact that he is a proxy.
- The Chosen One: Hoody said that Vincent was this to the rest of the commune dwellers when they started to suspect him. Then it ended up sort of being true...
- Doom Magnet: Well, he is the agent of death.
- Eyes Always Shut: Starts out this way, but they open after he becomes less meek.
- Fanservice Pack: Over the course of the series, he gets better looking and even seems to grow several inches taller.
- Horrifying Hero
- The Kirk
- Jekyll & Hyde: Initially, Ergo Proxy comes across as his Superpowered Evil Side and is a distinct entity from the meek Vincent.
- Nice Guy
- Papa Wolf: Do NOT mess with Pino. Seriously, don't.
- Split-Personality Merge: Something like this at the end of the series as he finally has both Ergo Proxy's powers and Vincent's personality.
- Took a Level in Badass: Several, even!
Voiced by Rie Saito (JP), Karen Thompson (EN)
- Action Girl
- Anti-Hero: She's a bit cold emotionally and has a definite mean streak, but there's no question she's one of the good guys.
- Badass Longcoat: Arguably subverted; despite her competence at her job, she's nowhere near as badass as she presents herself, a fact that becomes apparent after leaving Romdeau. This is bitterly lampshaded by Iggy after he contracts the Cogito virus, when he calls her out on acting like a badass government agent when she's really kind of a spoiled brat. Just how accurate this is is ambiguous, however; it could just be the rantings of a wounded friend taken for granted for too long. And despite all that, she still remains tough as nails throughout ensuing events.
- The Comically Serious
- Deadpan Snarker
- Defrosting Ice Queen: Hell of a slow thaw, though.
- Eerie Pale-Skinned Brunette: Everyone else has normal skin tones, whereas Re-l is straight black and white.
- Emotionless Girl
- Good is Not Nice
- Goth: She's something of a snarky, gloomy goth, dressing in all black and wearing lots of eyeshadow.
- Intelligence Equals Isolation: She chafes at Romdeau, where much of the human population are so coddled and helpless that they're effectively automata.
- Jerk with a Heart of Gold
- Ms. Fanservice: Not as much as other female characters in anime, but is particularly prominent when Ergo Proxy has flashbacks of their first meeting in her bathroom.
- Of course, given that the flashback is from his POV, it's combined with Male Gaze.
- The Spock
- Super OCD: It's been speculated that Re-l might have OCD, judging from the way she conducted an earlier investigation of Vincent's room (she lined up a cup on a stand in the mirror image of another) and the way that she behaved in episode 16. However, the former case could be the result of years of strict government training and the latter a result of Cabin Fever.
- Tsundere or Sugar and Ice Personality
- Used to Be a Sweet Kid: Judging from some old videos from Daedalus, Re-l seemed to be pretty cheerful growing up. Then she just became... gloomy.
- "Well Done, Granddaughter" Chick: In the end, Re-l just wants her grandfather's love and recognition.
- When She Smiles: At the end of episode 16, upon seeing Re-l give a true smile, Vincent is seen blushing.
Voiced by Akiko Hajima (JP), Rachel Hirschfeld (EN)
- Become A Real Girl: See Meaningful Name. It's kind of implied that this does happen in a literal sense, and it's necessary for the series to have a happy ending of any kind as otherwise, she'd be killed by ultraviolet light like all autoreives.
- Creepy Child: Before Character Development.
- The McCoy
- Meaningful Name: She shares a name with Pino of Black Jack, and for both of them the name alludes to Pinocchio and their status as an artificial child.
- Robot Girl
Voiced by Kiyomitsu Mizuuchi (JP), Travis Willingham (EN)
- A.I. Is a Crapshoot: Double Subverted. He gets infected with the Cogito virus when Romdeau's ruler sics his Autoreivs on Re-L, but actually keeps his sanity for a time. Then Re-L orders him to go back to Romdeau on his own, at which point it kicks in for real.
- Alas, Poor Scrappy: In-Universe. Re-L clearly doesn't like being around him for much of his screentime, on account of believing him to be Just a Machine and her grandfather's spy. It's only after he rails on her under the effects of the Cogito virus, and has to be put down after saving her life that she shows any sincere affection towards him.
- Ambiguously Gay. Later episodes reveal that Re-l deliberately chose him to sound this way.
- Jekyll & Hyde: As he lays dying in Re-L's lap, he continually shifts between his old personality, who begs Re-L to forgive him and not to hate him, and his Cogito infected self, who angrily blames her for getting him killed. The possible implication being that even after developing sentience, it was the Cogito infection causing him to attempt his kidnapping and murder not Iggy
- Jerkass Has a Point: Subverted. After completely losing it, he chews out Re-L essentially for thinking herself more Badass than she really is, but whether one agrees with him or not, his "plan" (consisting of dragging Re-L back to Romdeau, where she'll likely be arrested and/or executed, and he'll likely be decomissioned for being infected) is so unbelievably half-baked, that his only response is to ignore Re-L for calling him out on it. And that's not even getting into trying to kill Vincent to keep Re-L for himself, basically decimating whatever point he could possibly have.
- Killed Off for Real
- Nice Guy: Peppy, supporting, optimistic, and protective, hard to see why Re-L dislikes him at first. Until later that is.
- Yandere: Becomes this later in the series after getting the Cogito Virus.
Voiced by Hikaru Hanada (JP), Patrick Seitz (EN)
- Anti-Hero: He means well. Really.
- Ax-Crazy: Post Sanity Slippage.
- Badass Longcoat
- Break the Haughty
- Dark Messiah
- Deadpan Snarker
- Inspector Javert: Shades of it anyway.
- It's Personal
- Killed Off for Real
- Nietzsche Wannabe
- Sanity Slippage
- Tall Dark and Snarky
- The Stoic: Until he goes completely insane.
- Well-Intentioned Extremist: Starts as this. Descends into a Woobie, Destroyer of Worlds, before coming to his senses in his final moments.
- Creepy Monotone
- Killed Off for Real
- Mad Scientist
- Stalker with a Crush
- Big Bad
- Large Ham
- Grey and Gray Morality / Evil Versus Evil: He's pretty much responsible for much of the story's events, and ultimately, Romdeau's destruction, but everything he's done is in retaliation for what the Creators have done and are planning to do.
- The Man Behind the Man
- Manipulative Bastard
- ‹bermensch: Fits the bill. He was created to heal the planet Earth, and then die so that it would be handed over to his Creators. Proxy One essentially decided "Fuck that", and instead rejected their plans and ideals, opting to create a proxy who could survive sunlight i.e. Ergo Proxy, both to ensure at least one Proxy survived the genocide, and as a big, fat screw you to the Creators.
- Woobie, Destroyer of Worlds: He's part of a species of immortal demigods who are intended to self-destruct when planet Earth heals up, as thanks for having fixed the mess their creators started in the first place. Understandably, he's a bit upset.