
Firefighter Halsteadby thats_so_AJ
What if Jay and Will Halstead had a sister named Sarai Halstead, she is the only female member of Squad 3 and works under her best friend Kelly Severide, Hank Voight is...

Jay Halstead Adopts the Karate kid...by Camryn Kissel
What if when Jay was supposed to get home from Bolivia, his plane crashed into another country and he forgot his memories of the intelligence unit and of his siblings an...

The Long Road Homeby jenm2411
After pulling his sixteen-year-old sister, Alex, out of an unsafe home, Detective Jay Halstead is determined to give her life stability. But building a family isn't as s...

SSA Agent Caseyby thats_so_AJ
What if Matt Casey has a sister, there's been crimes in Chicago, Aaron her boss get a call from intelligence unit Sergeant Hank Voight because Matt Casey told him to ask...

The Long Haulby jenm2411
Jay witnesses an unhealthy family dynamic and brings his 16 year old sister to live with him. The sweet and innocent girl he remembers is now full of sarcasm and secrets...
Completed

Kim Burgess and Adam Ruzek story...by Camryn Kissel
alternative ending to season 7 episode 13. what if Kim didn't go to that building to save that girl.

Halstead Siblingsby lily trester
Buckle up for these exciting one-shots about the three Halstead Siblings
Disclaimer- I do not own any of the One Chicago characters, I'm sorry for any writing mistakes...

Crossroads in Chicago - a Chicago...by Em Livesy
In the gritty streets of Chicago, Katie finds herself at a crossroads, torn between her tumultuous past and an uncertain future. Escaping an abusive relationship, she em...

Adam's daughters story. Chicago Pd...by Camryn Kissel
what if Adam was a girl dad. introducing his 8 daughters, Samantha Ruzek, Tory Ruzek, Moon Ruzek, Yasmine Ruzek, Kamera Ruzek, Amelia Ruzek, Calla Ruzek, and Zhavia Ruze...

loving Casey: Chicago fire. Matthe...by jesserex
Sam Pittman was chilling at home when someone lit his house on fire and he was bound to burn alive, but his "mom" called the fire department aka Wallas boden...

Halstead Sister One Shotsby oneChicago2000
This is a bunch of one shots following the life of Gracie Halstead. She lives with her brothers Jay and Will since their mom and dad died when she was young. Requests ar...

Stand By Me | A Chicago Fire Fanfi...by OneChicago_ff
Darden's little sister has suffered 8 years of loss. How will the loss of her brother impact her and Matt Casey's life? Will the added responsibility of her niece and ne...

Chicago PD/VD (Voight/Kat)by Lizzy
This will be a collection of fanfics of Voight/Kat. Thought I'd experiment with the pairing, and now I'm liking it. Lol. So, here you go. Might eventually throw in some...
Completed

Last Name -> Jay Halstead (REWRITI...by Ali :)
In which Jay Halstead and Bess Hayden meet eachother and drunkenly get married, with Jay not knowing that Bess is the niece of Trudy Platt.
Jay Halstead x oc
Season 2-10...

Fireman Sam One-shotsby Speedbird1987
One-shots for Fireman Sam (Mainly Sam and Penny). but sometimes, it can include other relationships. features Characters from the One Chicago Series including OCs for Fi...

Good Days | CHICAGO PDby SLOANRILEYY
in which,
hank voight's daughter joins
intelligence and comes face
to face with her ex after a few years

Halstead Sisterby Dr. Spoonie
This is a book of one shots that takes place in an alternate universe where Jay and Will are the guardians of their little sister, Tess.
I will always take requests!