15 Works in SHIELD Agent Tony Stark
Listing Works
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Agent Zero is shields best agent and have been for years. He was also the youngest agent for a good while. There are no record of his civilian identity and he intends to keep it that way. No one has seen his full face. The most anyone has seen is his eyes. His only handler is Nicholas Fury and he is the only current shield agent who knows his real identity.
Tony Stark is Iron man, he is a billionaire, he is a philantrophist, he is a playboy and he is a certified genius. Everyone knows who he is. He has spent his whole life in the limelight and the world thinks they know every thing about him.
As it happens Tony Stark and Agent Zero are the same person
Series
- Part 1 of The Agent Zero Multiverse
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Moonlight and Boyfriends by Hayden49
Fandoms: Marvel, Hawkeye (Marvel Comics), Avengers Assemble (Cartoon), Avengers (Comics), Marvel Cinematic Universe, X-Men - All Media Types
28 Jul 2025
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To Sweet Nights and Sweeter Boys
Alt Timeline — No Civil War, SHIELD found Bucky early. Tony and Steve are a couple. The Avengers are still a thing. Clint is a soft agent with a thing for tired soldiers.Series
- Part 1 of Tony Stark is an agent of Shield
- Part 3 of Bucky Reads
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In another life by Hayden49
Fandoms: Marvel, Hawkeye (Marvel Comics), Avengers (Comics), The Avengers (Marvel Movies), Captain America - All Media Types, Winter Soldier (Comics), Marvel Cinematic Universe
22 Jul 2025
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Bucky Barnes/Clint Barton
Hipster Bucky/ collage bucky
More like Clint from the comics! Shield ClintSeries
- Part 3 of Tony Stark is an agent of Shield
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One and Only by FelixAfterAll
Fandoms: Marvel Cinematic Universe, The Avengers (Marvel Movies), Agents of S.H.I.E.L.D. (TV)
26 Jun 2025
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“Have you ever been in love?” Steve flinched ever so slightly when he realised he’d been caught watching the other man from the balcony door. He paused before stepping out, closing the door behind him as he walked over to stand next to where Tony was leaning against the balcony railing. He turned so his back was to the city and he could watch the party going on inside.
“Yea, once.” Tony hummed in reply but didn’t speak otherwise so Steve continued. “Have you?” Tony remained silent and Steve let him take his time to decide what to answer.
“Yea, I have.” When it became clear that he wasn’t going to keep going without being prompted Steve pressed.
“What was she like?” When Tony didn’t reply immediately he looked away from the party to look at Tony and when he did he felt all the air leave his lungs. The look on Tony's face was one he recognised all too well. “Tony?” He blinked and seemed to come back to himself ever so slightly.
Or: Tony and Steve bond over having lost people they love
This is a stand alone and have no conection to the rest of the series
Series
- Part 3 of The Agent Zero Multiverse
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Marvel Oneshots by Hayden49
Fandoms: Marvel, Hawkeye (Marvel Comics), The Avengers (Marvel Movies)
23 Jun 2025
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Just Marvel one Shots.
Series
- Part 2 of Tony Stark is an agent of Shield
- Part 5 of Bucky Reads
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Can you keep a secret? by FelixAfterAll
Fandoms: Marvel Cinematic Universe, The Avengers (Marvel Movies)
08 Apr 2025
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Tony Stark is a Shield Agent and has been since he was 16. The thing is only two people know about it so how will his fellow agents and the avengers react when they find out Tony is as dangerous in the suit as out of it.
This a stand alone and is not canon to Agent Zero I just put them as a series so it'd be easier to find.
Series
- Part 2 of The Agent Zero Multiverse
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Soon Free [!Moodboard] by DarthBloodOrange (DepressingGreenie) for MayAllLightShineInTheHeart
Fandoms: Marvel 616
01 Oct 2021
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Agent Tony Stark is sent undercover into Hydra to take down the organisation from the inside. He falls for the two assets Hydra put under his supervision. He will free them and burn Hydra to the ground while he does.
Tony informs them of the plans and they're, while cautious, on board. Freedom is close at hand and retribution is going to be sweet.
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“Don’t fucking touch me,” Tony snarls, grabbing Peter’s wrists to rip them off of him.
“Then don’t fucking talk,” Peter spits back.
Tony growls and shoves him back, but Peter just pushes right up against him again, getting in his space. He can feel his warm breath on his face as he snarls, “You think I wanna hear your fucking voice after you left like that? Tell me why I shouldn’t just punch your lights out right now."
And ouch, that kind of hurts. Tony shoves him off, jeering, “Well, you wouldn’t want to break my nose, sweetheart, we both know how much you love my pretty face.”
“Yeah, enough to want to spit on it, maybe.”
S.H.I.E.L.D. isn’t the worst place to work. Tony’s been there for a while now, and he gets along just fine. Then, he gets sent back to a world that he thought he’d never return to.
(AKA SHIELD agent Tony and mafia boss Peter hate fuck)
Series
- Part 16 of Starker Summer Bingo 2021 Fills
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The Agent and the Superhero [!Moodboard] by DarthBloodOrange (DepressingGreenie)
Fandoms: Marvel 616
16 Jul 2021
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Steve's identity has been revealed to the world. Tony is the government agent assigned to protect him.
Both think the arrangement is ridiculous, but as time goes on they soon discover their arrangement has some benefits as they quickly fall in love. -
5 Times Tony Seemingly BSed His Way Through a Mission + the 1 Time We See His Skill by tmarauder101 for sidneybelveire, StarryKitty013
Fandoms: Marvel Cinematic Universe, The Avengers (Marvel Movies), Marvel, Agents of S.H.I.E.L.D. (TV), The Avengers (Marvel) - All Media Types
20 Apr 2021
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Tony Stark is a peculiar spy for a number of reasons. On one hand, he overshares like hell, but on the other, he also has THE shittiest memory.
It’s really a lose/lose scenario for everyone involved.
Series
- Part 1 of Accidental Agent Tony Stark AU
- Part 1 of Tony Stories
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"I pulled your file you know," Fury finally spoke eyes focused on the frost-covered glass.
Tony kept his grin under wraps, he had expected nothing less of the Director, frankly, he was surprised it had taken him this long to bring it up.
"Wasn't easy, had to call in a lot of favours Captain Stark," he continued.
Tony arched an eyebrow, his grin managing to break through, “Learn anything interesting?”
Fury’s expression turned sour, “I know a doctored service record when I see one.”
He chuckled softly, but it was empty and hollow, Fury was right. His service record didn't exist anywhere in its entirety, he'd done a lot of things, been a lot of places….but that was neither here nor there.
“As nice as this heart to heart is Nick, is there a point here?”
The Director glowered at him, “Anyone tell you, you have shit people skills?”
“Frequently,” Tony replied cheerily.
"Smartass, in all your non-existent days in special ops you ever hear about a ghost called the Winter Soldier?"
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Run, (thorugh the) Forest!Run! by LiLlambmary
Fandoms: The Avengers (Marvel Movies), The Avengers (Marvel) - All Media Types
27 Jun 2019
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Tony needs to run as fast as he can out of these woods before he dies.
Rookie. Mile. Water.
Series
- Part 1 of level one
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The Hawk and The Mechanic by Crusoe15
Fandoms: Marvel Cinematic Universe, The Avengers (Marvel Movies)
12 Nov 2018
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When Howard Stark discovers his seventeen year old son, Tony, has hacked into SHIELD's database, he loses his patience with the stubborn. He resolves to teach him a lesson by having him join SHIELD as a field agent.
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Seventeen year old assassin Clint Barton, also known as Hawkeye, is captured and and offered a good job by SHIELD.
or
Clint and Tony both join SHIELD when seventeen and learn and grow together as agents, with Coulson as their Handler.
NO SLASH, BROTHERLY FEELINGSSeries
- Part 1 of Stark and Barton
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You Don't Know What You Don't Know by Shi_Toyu for InsaneJuliann
Fandoms: The Avengers (Marvel) - All Media Types, Iron Man - All Media Types, Captain America - All Media Types
28 Jun 2017
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In answer to the prompt:
“Friends Natasha and Steve decide to set up their friends Tony and Bucky on a date, since both have had bad luck with dating for a while. Unfortunately, these planned blind dates keep going wrong, so that one or both end up not being able to make it. Meanwhile, Tony and Bucky keep running into each other without realizing they’re the “friend” that Steve/Natasha are trying to set them up with, and grow closer, falling for each other.”
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What You Know Nothing About by spaceagebachelor
Fandoms: The Avengers (Marvel Movies), Captain America (Movies), Fantastic Four (Comicverse)
16 Jul 2014
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So Tony flies a nuke into space, then falls back out. Except for the space in between where he's neither flying nor falling, and instead is floating in some dark place with three other people who are apparently different versions of himself.