Since 2012, the One Chicago franchise has captivated audiences with its engaging stories, despite the influx of similar shows in the genre.
Origin and Expansion
Created by Dick Wolf, Chicago Fire premiered in 2012, spotlighting firefighters like Kelly Severide, played by Taylor Kinney. The series’ success paved the way for similar shows like 9-1-1 and Fire Country. Despite competition, Chicago Fire remains a favorite among viewers. The franchise expanded with Chicago P.D. in 2014 and Chicago Med in 2015, further strengthening its fan base.
While Chicago P.D. contends with other Wolf series like FBI and Law & Order: SVU, and Chicago Med competes with shows like Grey’s Anatomy, the One Chicago series continue to stand out.
Romantic storylines have been a staple since Chicago Fire debuted, with the universe expanding to include Chicago P.D. and Chicago Med. These shows offer heart, connections to Chicago, and beloved characters.
Character Resurgence

Fans have mourned departures of key characters like Matt Casey (Jesse Spencer) and Wallace Boden (Eamonn Walker) from Chicago Fire, and Jay Halstead (Jesse Lee Soffer) from Chicago P.D. However, the possibility of returns keeps viewers hopeful. Casey’s return for Severide and Stella Kidd’s wedding in season 10 and Soffer’s directing role on Chicago P.D. are examples of character comebacks. Nick Gehlfuss and Torrey DeVitto’s return to Chicago Med for a two-part arc thrilled fans.
Beloved Couples

The shows are known for their compelling romances. From Casey and Sylvie Brett (Kara Kilmer) on Chicago Fire to Kim Burgess (Marina Squerciati) and Adam Ruzek (Patrick John Flueger) on Chicago P.D., the relationships keep fans engaged.

Chicago Med features Will and Natalie, now expecting a child in Seattle, and the memorable pairing of Dr. Mitch Ripley (Luke Mitchell) and Dr. Hannah Asher (Jessy Schram).
Storyline Drama

Drama is a constant, with characters facing life-threatening situations. Chicago Med’s cliffhanger involving Dr. Caitlin Lenox (Sarah Ramos) and her attacker left fans anxious for her fate. Meanwhile, Hannah’s unexpected pregnancy adds intrigue.
New Characters and Backstories

New characters bring fresh perspectives. Chicago Fire introduced Sal Vasquez (Brandon Larracuente), whose past as a disgraced cop adds depth. Chicago P.D.’s Eva Imani (Arienne Mandi) brings intensity reminiscent of Hank Voight (Jason Beghe).
Exploring Personal Lives

Personal stories add richness. Chicago Fire explored Christopher Herrmann’s (David Eigenberg) personal life after his house burned down. Chicago P.D. delved into Dante Torres’ (Benjamin Levy Aguilar) past and Kevin Atwater’s (LaRoyce Hawkins) relationships.

Chicago Med touched on Sharon Goodwin’s (S. Epatha Merkerson) ex-husband’s Alzheimer’s, revealing her compassionate side.
Enduring Characters

Despite changes, key characters remain. Chicago Med’s Sharon and Dr. Daniel Charles (Oliver Platt) continue to lead the ED. Chicago Fire retains favorites like Severide and Hermann. Chicago P.D. maintains its core team with Voight, Burgess, Ruzek, and Atwater.