Brothers in Fiction: Chicago Fandom Fics
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Brothers in Fiction by RabidPlotBunniesAttackkkk
Fandoms: Chicago PD (TV), Chicago Fire, Chicago Med, Law & Order: SVU, Star Wars: Rebels, Star Wars Original Trilogy, Rogue One: A Star Wars Story (2016), The Pitt (TV), Harry Potter - J. K. Rowling
19 Feb 2026
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Summary
Just a general collection of one shots involving Jay and Will being the best brother's ever. Inspired by Brother by my side by black4minister. I also have one of the iconic Kelly and Casey friendship duo in an episode divergence one shot. Team as family, of course.
Crossovers:
Chicago Fire: 5, 6, 7, 14, 18, 31, 32
L&O:SVU: 12, 18
The Pitt: Chapter 40 -
AUs:
WWII: 15-17, 20, 22, 32
The Wild West: 21
Star Wars: 29, 33, 34
Harry Potter: 44Series
- Part 1 of Brothers in Fiction: Chicago Fandom Fics
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Younger Brother Will Selection by RabidPlotBunniesAttackkkk
Fandoms: Chicago Med, Chicago PD (TV), Chicago Fire
11 Jul 2024
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Summary
Though he’d been involved in a small part of the family drama and he’d kept a copy of the court case involving the relevant restraining order, Antonio had never met William Halstead. He was taller than he’d thought.
“Guys, this is my little brother, Will,” Jay grinned, steering his brother over to their table at Molly’s. “But if he tries to make you call him doctor you slap him upside the head.” The little grin he threw at his brother and then the glare he shot at the table when Will wasn’t looking dared them to take him up on his offer.
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Putting together chapters from my larger collection, 'Brothers in Fiction.' They're a bit of a hodge-podge at the moment so I wanted to make them more chronological.
Series
- Part 2 of Brothers in Fiction: Chicago Fandom Fics
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WWII AUs by RabidPlotBunniesAttackkkk
Fandoms: Chicago PD (TV), Chicago Fire, Chicago Med
11 Jul 2024
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Summary
“Jay?”
He knew that voice. Turning, he saw a red-head in a scruffy, mostly clean doctors coat, who’d taken shelter under an awning by one of the larger tents marked with a Red Cross. It was quite the treat for his companions, who saw Halstead smile so rarely and be largely self-contained, to laugh genuinely in this instance, rushing to meet the doctor halfway, practically lifting him off his feet in a bear hug.
“Will?! What’re you doing here?”
“Slumming,” The red-head’s voice reaches their ears as they form a sort of huddle under the awning as the two men break their embrace and retreat back into its shelter. “What do you think I’m doing here, Jay?”
“Apparently pulling the wool over everybody’s eyes,” Jay teases, ruffling the red-head’s hair familiarly. “They must think you’re a doctor, or something.”
Series
- Part 3 of Brothers in Fiction: Chicago Fandom Fics
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Gender-Swap Will AU by RabidPlotBunniesAttackkkk
Fandoms: Chicago PD (TV), Chicago Fire, Chicago Med
11 Jul 2024
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Summary
It’s Antonio who shuts Voight’s office door behind Jay, settling on the edge of the desk afterwards, not even bothering to exchange a look with Voight before he does.
The kid had been antsy that morning, looking at his phone more often than usual, consulting with Erin who had turned up late with a folder in hand. But they’d let it play out, Olinksy still outside with the others in the bull pen, tracking down leads for their latest case.
“Sarge,” Jay begins, tense in the chair. “I need to call in a favor.”
Voight is staring intently, Antonio can picture it even though he can’t see it. “Go on.”
Licking his lips, Jay begins. “I have a sister - she’s three years younger than me. Yesterday she turned up at my place - she’d taken a direct flight from New York - beaten all to hell.”
Now that gets their attention.
Series
- Part 4 of Brothers in Fiction: Chicago Fandom Fics
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Under the Protection of the Devil by RabidPlotBunniesAttackkkk
Fandoms: Chicago PD (TV), Chicago Med, Chicago Fire
11 Jul 2024
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Summary
Hank Voight could count on one hand the amount of times anyone had caught him off guard; now was one of those times. And Antonio was paying for it.
Detective Antonio Dawson, pain in his ass and an excellent detective; while he lacked Voight’s knuckle duster tactics, he got the job done and he did it well. Said detective was currently bleeding from his scalp and various other orifices as he lay curled on the ground, the punk who’d gotten the drop on them circling him like some kind of hyena.
Because that’s all these gangs were in the end, Voight mused, hyenas. They ate their own.
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Hank Voight has no shortage of enemies - so what's one more? The problem is -- this time Antonio is part of the fall out. Hank doesn't like that one bit.
Series
- Part 5 of Brothers in Fiction: Chicago Fandom Fics
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Star Wars AU by RabidPlotBunniesAttackkkk
Fandoms: Chicago PD (TV), Chicago Med, Star Wars - All Media Types, Star Wars Original Trilogy, Star Wars: Rebels, Rogue One: A Star Wars Story (2016)
11 Jul 2024
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Summary
“Get back to work,” The man spits at the worker with another casual hit from the baton, barely getting a cry from the man who scrambled quickly to his feet.
And it’s a good thing that Jay had his helmet on because once the man — a boy, really — is on his feet, frightened eyes flicking between his captors, he can only freeze when he realizes exactly who the kid is.
Because Will looks exactly like their mother.
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Jay is an Imperial Armed Forces sniper, Will gets picked up for stealing medicine -- the story of how the brothers come together again amidst the cruel, cold galaxy!
Series
- Part 6 of Brothers in Fiction: Chicago Fandom Fics
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The Lawman and the Sawbones by RabidPlotBunniesAttackkkk
Fandoms: Chicago PD (TV), Chicago Med, Tombstone (1993)
11 Jul 2024
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Summary
Jonas Clinton was a mean son of a bitch.
Though his picture graced the front pages of newspapers and wanted posters across the nation, they did not do justice to the weasel-like cunning of his deep black eyes. Jay would know - because all Jonas ever did was stare at them, silent and sullen among the group of captured criminals. Not that the others weren’t sullen, but most had become used to the idea of being captured and the fate that awaited them. Though they hadn’t killed many people, they were sure to end up in prison (or the quarries, those who hadn’t actually killed anyone). Because eye witness’s had identified Jonas Clinton as the the man who’d often done the killing.
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Jay is a Marshal. Voight and Olinsky are a legendary duo. Gunfights, outlaws, train robberies, and more!
(I only put this in the Tombstone fandom because of the AU setting?)
Series
- Part 7 of Brothers in Fiction: Chicago Fandom Fics
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Wherein I Have Way too Much Fun Giving Various Episodes Alternate Endings by RabidPlotBunniesAttackkkk
Fandoms: Chicago PD (TV), Chicago Fire, Chicago Med, Law & Order: SVU
26 Jul 2024
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Summary
Jay took a moment to watch his brother before he disturbed him. Will looked like hell.
There was blood on his coat and his face. His hair was a mess, out of the perfectly styled coif that he liked to tease his brother about. But he was alive.
He was alive.
“Hey,” Jay called, feeling a little concerned when Will barely moved from his slump, turning his head slightly, half opening his eyes to watch Jay approach.
Will tried to give him a smile, but it came out more like a grimace.
Gently, Jay pulled Will away from the column, looking over his brother, checking for damage before pulling him in for a gentle hug. Will leaned into it, turning his face into Jay’s neck, seeking comfort after the trauma he’d suffered.
“Hey, brother,” Will said softly, holding on just as tightly.
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Various Chicago series episode divergences. I had a lot of fun writing these. I hope y'all enjoy! (As a bonus, there is also a Chicago Fire episode AU as the last chapter of this collection.)
Series
- Part 8 of Brothers in Fiction: Chicago Fandom Fics
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Protective Jay, Hurt Will Ficlets by RabidPlotBunniesAttackkkk
Fandoms: Chicago PD (TV), Chicago Med, Chicago Fire, Law & Order: SVU
26 Jul 2024
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Summary
Ramon was fighting an internal battle. It had been years since he had joined the gang, and usually he was down for anything. But it didn’t sit right to see the doc hurt. He’d seen the boss go down to the basement when word came back that the detectives weren’t stopping their investigation, despite the box they’d received. He’d heard the occasional sound from the basement, faint cries from the captive drifting up the stairs.
“Send that,” the boss said, handing the fresh printouts to one of the guys. “Same as the last time. We’ll see if the pigs get this message.”
Ramon managed to look at the picture over Marco’s shoulder. They decided him.
He needed to make a call.
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This is a collection of my original storylines using my favorite Halstead Brothers. Putting poor Will in various whumpy situations and seeing what happens. Hope y'all enjoy!
Series
- Part 9 of Brothers in Fiction: Chicago Fandom Fics
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Summary
“So what’ve you got?” The man asked rhetorically, sounding cool and collected as he ignored the pain he’d just caused and searched through Will’s back pockets, coming up empty. With an impatient noise, he took some of his weight off of Will, a firm hand pulling him around by his shoulder, shoving him back against the wall. Seeing the wisdom in not fighting, Will closed his eyes as the man unzipped his jacket, searching through the inner and outer pockets, giving a little noise of triumph as he came up with Will’s house keys, his wallet, and his phone.
Will shivered, his eyes again closing involuntarily as the man, features obscured by a winter cap and muffler pulled up high, laid the knife against his cheek, his own blood smearing on his face at the light pressure.
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Please, please, please pay attention to the tags for this one! This is one of only two stories I've ever used the non-con/SA tags for. It's not incredibly explicit? But it is in the story. The second chapter should be avoided if you do not want to read anything in that category.
Series
- Part 10 of Brothers in Fiction: Chicago Fandom Fics
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A Traitorous Sky by RabidPlotBunniesAttackkkk
Fandoms: Chicago PD (TV), Chicago Fire, Chicago Med, The Pitt (TV)
13 Feb 2026
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Summary
For all that Jay liked guns and had worked with them professionally for most of his adult life, sometimes he hated them.
Especially in the hands of the psychos who’d decided to shoot up one of the bigger summer festivals held in Chicago.
And naturally, where trouble was, Will had to be right in the middle of it.
One shooter is down, Olinsky’s voice came over their ear pieces, Jay and Erin exchanging a satisfied glance.
Reports say at least one more, Voight added. But keep an eye out — we don’t want any surprises.
“Copy that, Sarge.”
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An Active Shooter and its consequences. Major Will Whump!
Series
- Part 11 of Brothers in Fiction: Chicago Fandom Fics
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Curses and Counter-Spells by RabidPlotBunniesAttackkkk
Fandoms: Harry Potter - J. K. Rowling, Chicago Med, Chicago PD (TV)
19 Apr 2026
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Summary
Conner was staring sightlessly into the fire in the Infirmary when the Carrow’s House Elf popped into existence, bringing Will’s limp body with him.
“Pipsy has brought the Blood Traitor to the infirmary,” the elf mumbled, eyes glittering with familiar madness. “Pipsy has completed his task. ‘Is going now.”
Barely noticing when the House Elf left, Conner scrambled to Will’s prone form, sprawled out on the stone floor of the infirmary. Momentary panic telling him that Will was dead. Closer observations showed that Will still breathed.
(Chapter 44 of my larger collection for the Chicago fandoms)
Series
- Part 12 of Brothers in Fiction: Chicago Fandom Fics