One Chicago & The FBIs Wiki
Chicago P.D. (Season 4)
Episodes: 23
Network: NBC
Original run: September 21, 2016 - May 17, 2017
Season chronology
Previous season: Season 3
Next season: Season 5
Fight For What's Right.

–Chicago P.D. Season 4 tagline

Chicago P.D. season 4 premiered on September 21, 2016 and concluded on May 17, 2017 on NBC.

Handpicked as the head of the unit is Detective Sgt. Hank Voight (Jason Beghe), who is at ground zero against the war on crime in Chicago. He will do anything to bring criminals to justice.

He has assembled a team of diverse detectives who share his passion and commitment to keeping the city safe. They include Antonio Dawson (Jon Seda), who is more levelheaded and "by the book" than his counterpart; Jay Halstead (Jesse Lee Soffer), a brash young cop who previously saw active military duty in Afghanistan; Halstead's partner Erin Lindsay (Sophia Bush), a former "bad girl" who turned her life around with Voight's help; Alvin Olinsky (Elias Koteas), an experienced undercover detective and confidante for Voight; Adam Ruzek (Patrick John Flueger), a quick-witted cadet plucked from the police academy as Olinsky's partner; and Kevin Atwater (LaRoyce Hawkins), a charismatic patrolman who was recently brought upstairs.

Kim Burgess (Marina Squerciati) and her new desk partner, Julie Tay (Li Jun Li), work the streets on a daily basis as uniform patrol officers and cooperate with Intelligence whenever necessary. Desk Sgt. Trudy Platt (Amy Morton) runs a tight precinct with tough love, although she lets her softer, more vulnerable side shine through from time to time.


Main Cast and Characters

Crossover Guest Stars

Recurring Guest Stars

Recurring Co-Stars

  • Kathy Scambiatterra as Medical Examiner Ruth Dwyer (5)
  • Celeste Cooper as Medical Examiner (5)
  • A.C. Smith as Superintendent (3)
  • Michael B. Woods as Bobby Trent (2)
  • Cesar Jaime as Paramedic Cesar (2)
  • Keisha Champagne as Virginia Cutler (2)
  • Eric Lynch as Officer Dichter (2)
  • Darren Stephens as Male White Shirt (2)
  • Elaine Rivkin as Female White Shirt (2)


Image Episode Summary Airdate
Cp0401.jpg 4.01 (#62)
The Silos
The aftermath of Justin's death hangs heavy over Voight and Lindsay as Intelligence investigates a murder arson case. September 21, 2016
Cp0402.jpg 4.02 (#63)
Made a Wrong Turn
Intelligence searches for a missing woman who disappeared from the most dangerous neighborhood in District 21. September 28, 2016
Cp0403.jpg 4.03 (#64)
All Cylinders Firing
Platt and her father become the targets of a brutal assailant. October 5, 2016
Cp0404.jpg 4.04 (#65)
Big Friends, Big Enemies
A shooting outside of a concert leads to a tangled web of gang related violence. October 12, 2016
Cp0405.jpg 4.05 (#66)
A War Zone
After the body of a college student and a backpack filled with deadly fentanyl wash up in the lake, Intelligence is under pressure to uncover the source of the deadly drug operation. October 26, 2016
Cp0406.jpg 4.06 (#67)
Some Friend
A teenage girl is found dead inside the home of a famous baseball player and friend of Olinsky. November 9, 2016
Cp0407.jpg 4.07 (#68)
The only eyewitness in a timely case against a suspected serial rapist is found murdered. November 16, 2016
Cp0408.jpg 4.08 (#69)
A Shot Heard Round the World
A highly trained killer wages war against the Chicago Police Department. November 16, 2016
Cp0409.jpg 4.09 (#70)
Don't Bury This Case
Kelly Severide of Firehouse 51 is at the center of a vehicular manslaughter case. January 3, 2017
Cp0410.jpg 4.10 (#71)
Don't Read the News
When a young woman's body is found, similar characteristics from past cases confirm that Chicago P.D. Has a serial killer on their hands. January 4, 2017
Cp0411.jpg 4.11 (#72)
You Wish
Intelligence investigates the actions of a Private Police Force operating independently of the CPD. January 11, 2017
Cp0412.jpg 4.12 (#73)
An investigation is blocked by a church offering sanctuary to the primary suspects. January 18, 2017
Cp0413.jpg 4.13 (#74)
I Remember Her Now
Halstead goes undercover at a corrupt treatment center for troubled young girls. February 8, 2017
Cp0414.jpg 4.14 (#75)
Seven Indictments
Intelligence investigates a home explosion with no witnesses and a victim burned beyond recognition. February 15, 2017
Cp0415.jpg 4.15 (#76)
Favor, Affection, Malice or Ill-Will
When a desperate father comes looking for a hitman to take care of his daughter's murderer, her case is re opened by the Intelligence team. February 22, 2017
Cp0416.jpg 4.16 (#77)
Emotional Proximity
After a deadly warehouse fire that left Olinsky's daughter fighting for her life, Intelligence mobilizes to find the arsonist. March 1, 2017
Cp0417.jpg 4.17 (#78)
Remember the Devil
A hiker leads Intelligence to a young woman being held captive in the woods outside Chicago. March 22, 2017
Cp0418.jpg 4.18 (#79)
Little Bit of Light
The death of a notorious crime videographer unearths the wrongdoings of a wealthy family. March 29, 2017
Cp0419.jpg 4.19 (#80)
Last Minute Resistance
Burgess's sister is the victim of a brutal sexual assault. April 5, 2017
Cp0420.jpg 4.20 (#81)
Grasping for Salvation
A recovered murder weapon challenges the conviction of a 17-year-old murder case. April 26, 2017
Cp0421.jpg 4.21 (#82)
Intelligence investigates a string of armed bank robberies leading them to a surprising crew of suspects. May 3, 2017
Cp0422.jpg 4.22 (#83)
Army of One
Intelligence hunts a vigilante who is torturing and murdering pedophiles. May 10, 2017
Cp0423.jpg 4.23 (#84)
Fork in the Road
Lindsay must navigate around CPD politics when her mother is implicated in a murder case. May 17, 2017

Chicago P.D.
Seasons Season 1Season 2Season 3Season 4Season 5Season 6Season 7Season 8Season 9Season 10
Current characters Hank VoightJay HalsteadHailey UptonKim BurgessAdam RuzekKevin AtwaterTrudy Platt
Former characters Sheldon JinSean RomanErin LindsayAlvin OlinskyAntonio DawsonVanessa Rojas