1 - 20 of 215 Works in Competent Agent Stone (Sonic the Hedgehog)
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A timeline of Stone and Robotnik trying to figure each other out - from their first meeting to the eclipse cannon.
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You can run from me no longer! by gblin_g00p
Fandoms: Sonic the Hedgehog (Live Action Universe)
24 Sep 2025
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Something that was well-known amongst those whom it concerned was that Robotnik hated parties. And that meant that if someone were to drag the doctor to said party, it would be an absolute disaster. So thankfully, after quite a few times of Walters having been witness to quite a few spectacles and subsequently not wanting to deal with the massive tantrum, they never invited him.
That was, of course, except for the ones they couldn’t avoid.
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Possessive behavior at Robotnik Labs by gblin_g00p
Fandoms: Sonic the Hedgehog (Live Action Universe)
22 Sep 2025
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Dr. Ivo Robotnik was never jealous. He knew everything; he was a genius, after all. Such human emotion was beneath him. No living, breathing thing could ever get close to his level of superiority. So what if another agent from Stone’s past suddenly gets thrust back into Stone’s life? So what if that agent is not only arrogant but also conventionally attractive? So what if the agent was obviously attracted to Stone? And so what if that same agent had tried to get into the agent’s pants? None of that mattered; the stone was working like normal, and that was that… until it suddenly did…
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Strange Days have Found Us by SioDymph
Fandoms: Sonic the Hedgehog (Live Action Universe)
21 Sep 2025
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One moment Sonic was packing his bags, trying to figure out if he could take his whole comic-collection with him, and the next he was captured, waking up in some sort of secret lab. He quickly learns he's been taken by G.U.N. and is being held and studied by Doctor Ivo Robotnik and his assistant Agent Stone.
Sonic can't shake the feeling that there's something far bigger going on. If only, he could figure out what their plan is.
((An AU where Sonic was captured during the beginning of Movie 1))
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It was supposed to be a simple meet up with their supplier, just buy some materials and get back home within an hour. Why did it have to go so fucking wrong for Stone?
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Stone is badly injured on a mission gone wrong, Robotnik races to get to him in time
Series
- Part 22 of Stobotnik Oneshots
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Our Dear Daughter by CrazyforClones
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic the Hedgehog (Live Action Universe), stobotnik - Fandom, Sonic Frontiers - Fandom
11 Sep 2025
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"Sage… The doctor hardly gave his creations such affectionate names. Everything about this discovery was causing more and more confusion for the agent. What was the purpose of this program… "
After the dramatic and deadly events regarding the Eclipse cannon, Agent Stone and the eggcentric Dr Robotnik retreat to one of Robotnik's last remaining 'secret' Labs in the Midwest of the United States. There, they must conform to domesticity, as many things said go unaddressed, but Stone discovers there is much more the Doctor isn't telling him when he runs into a program by the name of "Sage". Confused as to what her purpose is, Stone attempts to befriend the program, and Sage begins to express confusion and uncertainty as to why the doctor made her. Stone must force this answer from the doctor, leading to things unsaid finally being revealed.
Will Robotnik's long-held desire to have a family finally come to fruition, or will it be shattered, just as his old Grandfathers had? Are the Robotniks truly destined to be alone?
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You are You, Even in the Dark by ShirouChan12
Fandoms: Sonic the Hedgehog (Live Action Universe), Sonic the Hedgehog - All Media Types
08 Sep 2025
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The agent stepped back and reached for his holstered gun, ready to shoot the intruder, but his eyes widened, and he slid the gun back, crouching closer to the body on the floor. Looking closely, the face was quite familiar: pale skin, a thin nose, lips slightly parted from slow, even breathing. The man on the floor looked young, perhaps in his early twenties, with dark red hair that fell over his sleeping face. Even without the mustache, Stone would recognize that face anywhere. He saw it every day in the lab and every night in his bed. He saw it happy, angry, sad. He knew every wrinkle, every mole, every small expression. He would recognize it in the pitch black, would recognize it even if he were blind and deaf.
"Ivo..."
After an experiment that went wrong, Ivo turns into his younger self.
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A dog is more loyal through love, than fear by I_go_by_Faith
Fandoms: Sonic the Hedgehog (Live Action Universe)
03 Sep 2025
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Deep in a drawer in Robotnik’s laboratory, there is a yellowed and worn piece of paper, issued to him the day he was given Stone. In several places the text has been struck through and annotated, in the doctor’s near-illegible handwriting.
Doctor Robotnik,
You have been given command of Agent █████ Stone.
The agent is considered one of G.U.N.’s top assets, with a kill count of ████.
Agent Stone is difficult to control; simple commands have the greatest rate of success.
The current commands it has been programed with are as follows: -
But Does He Know Where Your Heart Lies? by Eggopath
Fandoms: Sonic the Hedgehog (Live Action Universe)
02 Sep 2025
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Inspired by an Edit by @ila_cobalt on TikTok!!
With Robotnik gone, Stone had to lay low. He simply continued following the doctor's manifesto. Although, now that he's done a lot of what the document told him to do, he's left waiting. Then a certain deputy comes into his cafe.
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Continuing my Lineage by Omnivorous_Reader
Fandoms: Sonic the Hedgehog (Live Action Universe)
02 Sep 2025
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It all started with an episode of La Ultima Pasion. While the telenovela didn’t include henchmen, male pregnancies, or even blue, supercharged hedgehogs, it most certainly gave Robotnik his best idea of late:
Producing an heir.
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The Conclusion (one shot) by Kalahnib
Fandoms: Sonic the Hedgehog (Live Action Universe), Sonic the Hedgehog - All Media Types
31 Aug 2025
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This get to much for ivo robotnik but that all changes when Agent Stone shows up and helps get things back on track
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A Wound for Generations by CheshireMouse
Fandoms: Sonic the Hedgehog (Live Action Universe)
30 Aug 2025
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In one universe, Shadow, grief-stricken from his only friend's death in 1974, was put into stasis for fifty years, only to be released as a tool for vengeance by a similarly stricken man.
But, in another, he escapes from Oaklahoma to Green Hills, Montana. Thirty-nine years, he hides alone in the forest, slowly pulling the pieces of his life back together in complete isolation.
Until, one night, as he scavenges in the total darkness, a golden ring opens up a portal and a small, blue hedgehog appears, screaming for a mysterious someone.
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He turned to face Robotnik, his hardened expression instantly softening back into the one he reserved only for him – with eyes wide, and lost like a puppy, instead of cold and sharp like those of a wolf - but not before Robotnik was able to catch a glimpse of it anyway, and suddenly, the genius was momentarily reminded of the wild animal that allowed itself to be kept docile under his thumb.
It was an easy fact to forget, Thought Robotnik, and given the agents rather submissive tendencies, and unwavering devotion - towards him, at least - it was one he often did…
But don’t let the doe eyes and innocent smile fool you, for despite the doctor’s treatment of him as such, it was no spineless runt that G.U.N had saddled him with. Oh no, no no. Not his agent. Not in the slightest.Tags, warnings, and summary will change as the story progresses!
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Agent Stone would like to be able to make coffee in the breakroom in peace for once.
In which Agent Stone believes he is being hit on but is actually invited to play paintball.
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Back to the way things were by Jimmy_laughsalot
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (IDW Comics), Sonic the Hedgehog (Live Action Universe)
26 Aug 2025
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Agent Stone was determined to do whatever it takes to bring Doctor Eggman back to his former glory.
But when Agent Stones affections suddenly get reciprocated, he is conflicted on what to do.
---Having knowledge of what happens in the IDW comics is not needed but might help with making sense of some things. If you have questions feel free to leave a comment! I tried to make this as canon compliant as I could to the IDW comics.
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And I'd Set the World on Fire (Baby it's Your Funeral Pyre) by JustNerdyThings
Fandoms: Sonic the Hedgehog (Live Action Universe)
24 Aug 2025
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Stone wonders sometimes, when his grief is softer, when it loses its sharp edges, if he’s doing the right thing. He wonders if this is what his Doctor would have wanted for him, in those final, devastating moments. He doesn’t wonder if he’ll be absolved for any of it.
The Doctor may have forgiven the world for what it did to him, but Stone… No, Agent Stone has never been one to forget.
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Dark Between the Stars by Sevi007 for ending_roses, orphicsun, WafflesIron
Fandoms: Sonic the Hedgehog (Live Action Universe)
24 Aug 2025
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More and more intrigued by the second, Robotnik mirrors the creature, leaning in closer towards the window to be eye level with it. He is a little taller than it is, so he has to bend down a little to address it directly, “What are you?”
“What a strange question.” It tilts its head. Almost birdlike, if not for the way the angle is all wrong, flesh bending in places where there should have been hard bones. It almost distracts Robotnik from the answer: “I am me. Is that not enough?”
Pfff. Either it is dumber than expected, or it has gotten the hang of how to play games. “Hardly,” Robotnik informs it, quite magnanimously in fact. “You are obviously not human, though you’re appearance as one is, dare I say it, flawless so far.”
“Why, thank you.”In a bid to find something that manages to hold his interest for longer than a few minutes, Robotnik uncovers a secret project, hidden in the bowels of G.U.N.s oldest base. A thing which’s very existence breaks a human’s mind. Finally, something worthy of Robotnik’s attention!
Series
- Part 1 of Horror has my Heart
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I Never Learned Love (But I Recognized You) by NikkiKaji
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games)
23 Aug 2025
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Months after the events on the Starfall Islands, Dr. Eggman faces a new kind of chaos: raising his newly embodied daughter, Sage. Realizing that Orbot and Cubot lack the finesse for complex childcare and high-level villainy support, the doctor reluctantly opens applications for a personal assistant.
Expecting incompetence, he's instead intrigued by the final applicant: Aban Stone, a former barista with an impossible IQ and unnerving efficiency.
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All of this was to bring me back to you... by KieraHazbin
Fandoms: Sonic the Hedgehog (Live Action Universe)
19 Aug 2025
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Eight months.
That's how long it's been since the doctor exploded into a supernova right before his eyes. He's spent the last few months locked away in one of the doctor's old safehouses, recovering whatever he could of his Badniks and even a few unfinished prototypes that had proved quite useful in fighting Sonic and his little friends.
But it all still felt empty without Robotnik.
That was why he was working on this new machine, from the doctor's old blueprints. A ‘time machine’ of sorts, powered by one of Sonic's quills. It was a simple wrist watch design, but if it works…
If it works, he'll have Robotnik back.
Series
- Part 17 of Stobotnik Oneshots
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Summary
After a near-death fight with Team Sonic (after the events of movie 2), Agent Stone is set with the difficult task of helping Dr. Robotnik recover. Stone quickly learns that this healing is not only needed for the body, but for the mind as well. Can the agent heal both, all while keeping his heart at bay?
(Note: I'm new to ao3! So I'm still figuring out how to use this thing. This fanfic is not complete as of now!)