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Names are in Japanese order (Family name first, given name second). For characters appearing in both this game and the previous entry in the series, see below:

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    Hiyajo Maho 
Voiced by: Sayuri Yahagi (JP), Monica Rial (EN)
https://static.tvtropes.org/pmwiki/pub/images/maho_hiyajo_profile.png

A classmate and friend of Kurisu at Viktor Chondria University, she works as a research assistant to Professor Alexis Leskinen and specializes in neuroscience and artificial intelligence. She's the principal developer of the AI Amadeus. Even though Maho's a genius girl in her own right, she feels her skill can't compare to Kurisu's natural talent for science. This doesn't stop Maho from creating a strong friendship with her.


  • A-Cup Angst: Mostly low-key, but she shows shades of this when Moeka is around.
  • Adorkable: She's socially awkward and gets embarrassed easily.
  • Always Someone Better: Her relationship to Kurisu. She freely admits she's "the Salieri to Kurisu's Mozart", to the point that her username to the Amadeus system is Salieri. Subverted in that, like the real Salieri and Mozart, Maho and Kurisu shared a relation of mutual affection and admiration, but Maho can't help but be a bit resentful.
  • Berserk Button: Do not mention her height or treat her like a kid if you value your own health.
  • Big Damn Heroes: In the Gehenna's Stigma route, she and Kagari manage to break out Rintaro from Stratfor's kidnapping. Sadly, Okarin's too far gone by then.
  • Early-Bird Cameo: Maho can be seen in a Freeze-Frame Bonus in the background arriving at Akihabara station in Episode 23 Beta of the reaired Steins;Gate anime.
  • Embarrassing Nickname: Daru calls her "Maho-tan" and Faris "Maho-nyan". She isn't particularly fond of either.
  • Fashionable Asymmetry: She wears different shoes on each foot.
  • Gadgeteer Genius: She manages to put together an improved version of the Phonewave just by checking Kurisu's notes.
  • Genius Slob: Her hair is a messy jungle that goes down to her knees and both her campus room and her hotel room in Japan are always messy to the max. Of course, she claims she knows where everything is.
  • He Is Not My Boyfriend: Dr. Leskinen, Dr. Reyes and Amadeus!Kurisu just don't stop insisting Okabe is Maho's boyfriend, which she tries to deny to no avail.
  • Labcoat of Science and Medicine: She wears one.
  • Love Epiphany:
    • Develops feelings for Okabe in the "Smartphone On" branch; It's more-or-less played straight in the "Vega and Altair" route, where Okabe's kindness, the events of the day and a heart-to-heart conversation between each other make her think to herself that she's fallen in love with Okarin.
    • Averted in the "Gehenna's Stigma" route where, while still having a blatant crush on him (to the point that she sleeps hugging the plush that he gave her) she remains in denial of it. Moreover, Leskinen's brainwashing convinces her that she's too dangerous to be close to Okabe, since she could betray him again, and with the overlooming war it's likely that she'll never have a proper resolution.
  • Loving a Shadow: An argument can be made that she has indeed fallen in love with Okarin because she's been convinced to by Dr. Leskinen and Amadeus!Kurisu, who with their constant remarks created the illusion of attraction in Maho's mind.
  • Messy Hair: Her hair always looks like she just got out of bed.
  • Mistaken Age: Okabe mistakes her for a child in their first meeting. It apparently happens often enough to make Maho irritated.
  • Morality Pet: To Moeka in Twin Automata. She helps her out of her shell and through her self-esteem issues.
  • The Napoleon: She's tiny and has quite the temper.
  • Older Than She Looks: She's 21, but she looks like she's 12. Taken Up to Eleven in the Golden Ending, where she looks exactly the same despite being in her mid-thirties!
  • Only Sane Woman: Like Kurisu before her, the shenanigans of Rintaro and co. confuse her greatly sometimes.
  • Rapunzel Hair: Her hair reaches past her hips.
  • Sempai/Kohai: She was Kurisu's sempai and Kurisu respected her a lot. Ironically, Maho was the one who felt inferior to Kurisu for her natural talent.
  • Shana Clone: A downplayed one. Maho is a tiny, flat-chested, long-haired Tsundere who gets easily angry when you bring up her childlike looks. However, she's far nicer than most examples and her interest in Okabe never goes beyond mere Ship Tease.
  • Super-Deformed: Her go-to expression whenever she's flabbergasted or spooked. Easily observable during Rintaro's sudden outburst at the Amadeus seminar, or after her own repeated failure at getting a plush doll from the arcade claw machine.
  • Suspiciously Similar Substitute: For Kurisu. Both are serious scientists with a Tsundere streak, and act as the Only Sane Woman amongst the cast. However, Maho is both more socially stunted and nicer than Kurisu.
  • Token Mini-Moe: One of the youngest-looking members of the main cast. She's actually older than most of them, though.
  • Tsundere: Sweet type. She's quite the Nice Girl, unless you make fun of her height or say embarrassing things about her and Okabe.
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    Alexis Leskinen 
Voiced by: Yoji Ueda (JP), Christopher Wehkamp (EN)
https://static.tvtropes.org/pmwiki/pub/images/leskinen_profile.png

Maho's mentor and superior, Leskinen is a big, happy lug of a man, both a respected scientist and a "big child", according to his assistant Maho. A gentle and mischievous mind, he's always teasing Maho about her relationship with Rintaro.


  • Big Bad Duumvirate: With Dr. Reyes.
  • Broken Pedestal: Maho is devastated to learn that her mentor is a megalomaniac willing to exploit the time machine and ushering in World War III for his own benefits.
  • Chivalrous Pervert: Shows shades of this, when he makes off-color remarks to Maho or mentions how pretty "Lintahlo's girlfriends" are.
  • Evil Counterpart: He can be considered one to True End!Okabe. They are both silly mad scientists that under the orders of their future self, want to create a new future. But while Okabe is guided by Beta!Okabe to find Steins;Gate where there is no war or dictatorship and only pretends to be a mad scientist for fun, Leskinen wants the time machine to model time to his will and is a very real and cold mad scientist.
  • Evil Gloating: Gives a very calm, subdued one to Okabe in "Gehenna's Stigma" after kidnapping and tying him to a chair, when he explains his reasoning regarding his plan to expose the time machine technology to the world; its nature is even Lampshaded by Okabe himself:
    Okabe: That's just the kind of monologue a villain gives in the movies.
  • Faux Affably Evil: When's he introduced, Leskinen seems to be a harmless, friendly and somewhat eccentric scientist who quickly befriends Okabe, and has a weird interest in Japanese culture, particularly "Shaman Girls". This foreigner, however, is working for Stratfor, a company similar to SERN and is actually a power-hungry, cruel and greedy person who doesn't hesitate to use unscrupulous methods for his own gains.
  • Funetik Aksent: Even though he has a heavy accent, the game mostly ignores it, except for Rintaro's name, which is always displayed as "Lintahlo".
  • Funny Foreigner: He's an eccentric American professor who speaks with a Funetik Aksent and his behavior is an exaggerated portrayal of Japanese stereotype of westerners.
  • The Glomp: His standard greeting, as per the Japanese stereotype of westerners.
  • Gratuitous Foreign Language: His surname, "Leskinen", is Finnish. His given name however, is not. The correct Finnish form of "Alexis" should be "Aleksi".
  • Gratuitous Japanese: "Lintahlo!"
    • It's quite an odd case, however, since due to the native Japanese language of the series, his voice actor still reads Okabe's name as "Rintaro". It would be more accurate to call this gratuitous subtitles or dub.
  • I Resemble That Remark!: When Rintaro calls him a Mad Scientist, he is positively elated.
  • Laughably Evil: Even after being revealed to be a diabolical and megalomaniac, Leskinen's quirky personality and weird accent still shine through.
  • Mad Scientist: Not a fun, fake one like Kyouma - a creepy, sinister, real one. He experiments with humans and uses brainwashing, conditioning and torture for his own ends.
  • Manipulative Bastard: His biggest skill as a villain. He brought Maho to Japan in the hopes she was able to get more information about Kurisu's research - and when he met Rintaro and learnt of his relationship to Kurisu he immediately charmed him with promises of an easy way into Victor Chondria. Not only that, but he acted like a Shipper on Deck - with Okabe and Maho or with Okabe and Amadeus, depending of the branch - in the hopes that Rintaro would feel closer to them so it would be easier to get information out of him; this plan completely succeeds in Gehenna's Stigma.
  • Obfuscating Stupidity: More like "Obfuscating Goofiness", as nobody thinks Dr. Leskinen is dumb. But when he reveals his true self, he becomes all business.
  • Phenotype Stereotype: He's American (of Finnish descent, judging by his name) and, thusly, he's tall and wide and has a big-ish nose, blonde hair and green eyes.
  • For Science!: Like any mad scientist when asked about why he's doing all this, he just states a scientist is all about creating theories and trying to prove them. Thus all he's doing is proving the theories that his future self created. When Okabe points out he could create a time paradox with his actions, he just smiles and saying he would love to see the results if that really happens.
  • Shipper on Deck: He at least likes to tease Okabe and Maho about a possible romance between the two.
  • Walking Spoiler: Knowing too much about him been anything more than the Funny Foreigner professor is a major give away for many revelations.
  • The Worf Effect: Meta example. If you leave the Twin Automata route for last, you're expecting Leskinen to be the route's bad guy, as he was on the rest of the routes. But he's suddenly killed off by Dr. Reyes before he can reveal his true colors.
  • Would Hurt a Child: Experimented on/brainwashed Kagari when she was just a small child.
  • You're Insane!: Called out by Okabe for trying to use the time machine knowing it might endanger the entire universe. Leskinen actually takes it as a compliment.

    Shiina Kagari 
Voiced by: Megumi Han (JP), Alexis Tipton (EN)
https://static.tvtropes.org/pmwiki/pub/images/child_kagari.png

A time traveler from 2036 who travelled with Suzuha in the time machine, but got separated from her during their brief journey to the year 1998. She bears a striking resemblance to Kurisu.


  • Becoming the Mask: In routes where she impersonates Amane Yuki in the present day of 2010-11, she is the only Yuki the cast ever meets, since the real Yuki is abroad in Europe for several years by the machinations of Dr. Leskinen. Despite this guise, she does seem to form a genuine bond with the cast, and actually falls in love with Daru; when she lies dying of her injuries after slaughtering Leskinen's men in one worldline, she can only hope that the real Yuki will love Daru too.
  • Borrowed Catch Phrase: After being sent back to 1975 with Suzuha, she responds to Suzuha's orders with "Okie dokie!"
  • Brainwashed and Crazy: She was in the list of people experimented by Stratfor and was brainwashed by them.
  • Even Evil Has Loved Ones: Kagari is fully under Leskinen's control during the Vega and Altair route, though her utter devotion to her mother Mayuri is unchanged.
  • Hearing Voices: Thanks to Leskinen, and the reason she runs away from Suzuha in 1998.
    Kagari: I hear the voice of God...
  • Identical Stranger: She looks a lot like Kurisu, but the resemblance is purely coincidental.
  • Kid from the Future: She is Mayuri's adoptive daughter from the future.
  • Living MacGuffin: She becomes this on "The Promised Rinascimento" route thanks to being the recipient of Kurisu's memories, which makes her extremely valuable to some.
  • Noodle Incident: We never find out the actual reason Kagari separates from Suzuha in 1999 in the "Smartphone Off" branch. This doesn't happen in the "Smartphone On" branch, since there we find out that Kagari fled from Suzuha after a brief scuffle with her because Kagari was brainwashed by Dr. Leskinen into preventing the future from changing at all costs. This explanation doesn't apply in the first branch because in that timeline Kagari was never brainwashed in the first place, since Dr. Leskinen was killed by Reyes (which outright happens on-screen in "Twin Automata" while heavily implied in "The Promised Rinascimento".
  • The Pollyanna: She has a very gentle and optimistic personality, just like her mother. This doesn't prevent her from killing scores of people in some routes.
  • Rapunzel Hair: She has hip-length hair.
  • Replacement Goldfish: Deconstructed. Her resemblance to Kurisu is noted by the cast, but seems to be treated as a coincidence (which it is). However, in "The Promised Rinascimento" route, where Kurisu's memories start "overwriting" Kagari's. Rintaro finds himself more and more willing to let it happen. Luckily, he snaps out of it.
  • Story Branching: Adult Kagari's physical appearance depends on which route you take; in Promised Rinascimento and Twin Automata, she resembles Kurisu, whereas in Vega & Altair she is revealed to have taken on Yuki's appearance.
  • Surgical Impersonation: In one route, she was able to impersonate Amane Yuki using Magic Plastic Surgery and not even Yuki's future daughter Suzuha can tell the difference.
  • Transferable Memory: Kurisu's memories are artificially stored on her brain.
  • Walking Spoiler: Simply knowing about her is already a pretty big reveal, not to mention her (adoptive) mother's identity and how radically different her roles and life are in the story, all simply depending on whether Okabe decided to keep his Smartphone On or Off, which in itself won't change the core fact that she's destined to remain in 1999 and live a decade full of misery.
  • Womanchild: After she recovers her childhood memories, she starts acting like a ten-year-old despite being an adult woman.

    Judy Reyes 
Voiced by: Maya Nishimura (JP), Emily Neves (EN)
https://static.tvtropes.org/pmwiki/pub/images/dr_reyes.jpg

A Psychology Research Institute professor at Viktor Chondria University and a colleague of Leskinen. She has a fairly blunt, straightforward personality.


  • Big Bad Duumvirate: With Dr. Leskinen.
  • Eagleland: She's of the boorish variety, due to being an antagonistic DURPA agent trying to claim the secrets of time travel for the United States.
  • Faux Affably Evil: Like her colleague, Reyes would appear to Okabe and co. as a perky and cheerful individual, though all pleasantries get thrown out the window when she reveals her true colors.
  • Funetik Aksent: Reyes speaks with a noticeable accent, though not to Leskinen's extent.
  • Hot Scientist
  • Lady Swears Alot: Delivers a healthy dose of Precision F Strikes in Gratuitous English when she gets mad.
  • Shipper on Deck: Like Dr. Leskinen and Amadeus!Kurisu, Judy likes to tease Maho about her apparent crush on Okabe.
  • Statuesque Stunner: She has a figure that rivals Moeka's and Kagari's; this is in fact a major plot point regarding the identity of the Woman in the Motorcycle Suit, which in itself changes depending of the branch. In her case, she was the one who attempted to kidnap Kagari in the "Smartphone Off" branch, with Amane Yuki being a Red Herring.
  • Walking Spoiler

    Amane Yuki 
Voiced by: Yukari Tamura (JP), Cherami Leigh (EN)
https://static.tvtropes.org/pmwiki/pub/images/yuki_amane.png

The future wife of Daru and mother of Suzuha.


  • Give Geeks a Chance: The attractive Yuki likes Daru for the perverted Otaku that he is. When everyone had Daru act like a suave ladies' man to impress her, Yuki was turned off. It probably helps she's a cosplayer.
  • Go Out with a Smile: Suzuha remembers that Yuki smiled as she protected her daughter from death.
  • Red Herring: Depending on the route, she may or may not be the Woman in the Motorcycle Suit (or isn't even the real Yuki); in the route where she isn't in the motorcycle suit, she explains away her arm injury by saying that she slipped on ice.
  • Strong Family Resemblance: With Suzuha, naturally. Looking just like her but with blondish hair.
  • Ugly Guy, Hot Wife: Okabe (and others) comment on how they cannot believe that she hooks up with Daru in the future.
  • Taking the Bullet: Turns out she died protecting Suzuha from a drone in the Bad Future.

    Amadeus 
Voiced by: Asami Imai (JP), Trina Nishimura (EN)
An AI constructed by Professor Leskinen's department at Viktor Chondria university, based on the likeness of Kurisu Makise.
  • Benevolent A.I.: Amadeus's personality is remarkably polite and cordial towards Okabe, unlike the real Kurisu who is usually abrasive and snarky.
  • MacGuffin: She is one in 0. As the principle behind Amadeus' operation is Transferable Memory, it could be utilized as a method to send information into the past, not unlike the Time Leap machine.
  • Named After Somebody Famous/Meaningful Name: What other "Amadeus" could you think of at the drop of a hat than Wolfgang Amadeus Mozart? And it goes further, since Amadeus was developed partly by Maho, who freely admits she's "the Salieri to Kurisu's (Amadeus) Mozart".
  • Nice Girl: This AI who replaces Kurisu after she died is a lot more approachable, friendly, helpful, tolerant and patient towards Okabe as she's introduced to him and onwards.
  • Transferable Memory: The whole point of the Amadeus project.
  • Unwitting Instigator of Doom: Amadeus' constant interactions with Okabe, otherwise known as the "Phone on" route, results in the Gehenna Stigma ending, where essentially The Bad Guy Wins, Okabe gives up on reaching Steins;Gate, Amadeus herself gets deleted, and many important characters are killed.
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    Kurushima Kaede 
Voiced by: Hina Kino (JP), Bryn Apprill (EN)

One of Mayuri's cosplay buddies.


  • Ascended Extra: Kaede was only mentioned in passing in the original visual novel as a friend of Mayuri's, before officially making her debut in 0.
  • Cool Big Sis: Katsumi sees her as one, especially since she's able to always confide in her.

    Nakase Katsumi 
Voiced by: Mariko Honda (JP), Mikaela Krantz (EN)

Mayuri's other cosplay buddy and close friend.


  • Ambiguously Gay: Lampshaded by the way she talks to Mayuri, whom she even playfully groped at one point.
  • Only Known by Their Nickname: Her cosplayer name is Fubuki and everyone, even the game's UI, refers to her as that.
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