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    Hank Voight 

Henry "Hank" Voight

https://static.tvtropes.org/pmwiki/pub/images/sergeanthankvoight.jpg
Played By: Jason Beghe
Detective Sergeant, Squad Commander of the Chicago Police Department's Intelligence Unit
  • Action Dad: To his son, Justin.
  • Anti-Hero: Voight is a dedicated cop for the people and the city of Chicago, but more often than not resorts to very underhanded, sometimes outright illegal ways to do so. See Knight Templar.
  • Blackmail: Voight has no qualms about using this when needed (in Season 2, it's shown he rents a storage unit where he keeps potentially incriminating materials).
  • Briefcase Full of Money: Several times Voight has given huge amounts of cash to people in need, courtesy of the safe hidden in his basement.
  • Bullying a Dragon: A lot of people seem to think that they can be the one to intimidate Voight. He very quickly robs them of that notion.
    • A couple of crooks hear that Voight keeps a significant stash of money in his home and decide to rob him and torture Olive, the woman pregnant with Voight's grandchild, to get him to open his safe. The two find out the hard way why that was a bad idea.
    • A murderer and heroin dealer (who is genuinely guilty) whom Voight put away with false information decides to try and kill him with a bomb planted in his car, nearly killing Voight's family in the process. Voight has to be physically pried off the guy when he's finally caught.
  • Consummate Liar: Voight is more than willing and fully capable of covering up his more illegal activities when working the cases he and his unit investigate. He even advocates that his unit resort to "off-the-books" proclivities and that it be past by him and no one else.
    Voight: "We keep everything in house. ... this is Intelligence. My unit. You do things my way. Our way. You tell me the truth so that I can lie for you."
  • Convicted by Public Opinion: Although there is no concrete evidence that Voight is a dirty cop, it's obvious most people believe he is. Sometimes he uses this reputation to his advantage, sometimes it bites him in the ass.
  • Cowboy Cop: Voight plays fast and loose with the rules when it comes to catching suspects, and protecting Chicago. Second trope, he will not hesitate to commit the unspeakable, or violate a suspect's constitutional rights when he's really in a mood or totally out to get Chicago's worst felons off the streets (See Pay Evil unto Evil, Roaring Rampage of Revenge and Torture Technician).
    • That being said, justice is Voight's ultimate motive, and he generally prefers to keep most of his team clean as much as possible. When he goes outside the law, he usually does it himself or with Olinsky.
  • Crazy-Prepared: Voight has his own stash of blackmail material, listed by season and year, that fills an entire storage unit. Summer 2005 comes in handy when trying to get a memorial stone approved. J. Edgar Hoover would be impressed.
  • Death Glare: Voight reserves his for whenever he's truly pissed and/or trying to break a particularly intransigent suspect. A mild version is enough to get a diplomat's bodyguards to give up their weapons.
  • Defeat Means Friendship: He is, at first, ruthless and unapologetic when aiming to coerce Matt Casey into covering up Justin's DUI. Though after he's newly out-of-prison, he holds no ill will towards Casey, Antonio for arresting him, or even prosecutor Peter Stone for sending him to prison. He eventually earns their grudging respect because of his dedication to gaining justice for victims in his cases.
  • Dirty Cop: Voight is suspected of being this by a great many people. Chicago Fire seemed to set up that he's pretending to be dirty in order to take down street gangs, but developments on Chicago PD make things murkier. Voight finally reveals to Intelligence that he indeed put himself out as a supposedly dirty cop in order to bring profile criminals, but that does very little to make clear if his hands are truly clean.
    • The only thing that's certain in everyone's eyes is that Voight has always acted extralegally (to what extent is yet to be seen) but also always has Chicago's best interests at heart and always operates safely conscious and in general shows restraint.
  • Doting Grandparent: The man who terrifies most of Chicago's criminal underworld by reputation alone turns out to be a doting grandpa who's more than happy to go to theme restaurants to spend time with his grandson, Daniel.
  • Establishing Character Moment: In the first episode, Voight forces a beaten drug dealer to drive outside Chicago city limits, kicks his ass some more, gets him to give up his supplier, takes his money (four thousand dollars of it), and tells him that if he ever steps inside Chicago again, he'll kill him. Then, he leaves him a hundred bucks for bus fare.
  • Experienced Protagonist: By Season 5, he's been a cop for 27 years.
  • Family of Choice: Lindsay and Voight. After a meeting with her mother, during which she is told that Voight is not her family, Lindsay goes straight to Voight, simply to tell him that he definitely is.
  • Fingore: Voight uses a pair of pliers to break the fingers of a man to intimidate a woman into talking.
  • Friend to All Children: Voight has a soft spot for kids and will go out of his way to help vulnerable young people in trouble and get them out of a life of crime. God help you if you threaten one and he finds out about it. When investigating a case where a student may have been involved in a suspected attack on a school, he actually follows the rules to the letter.
  • The Gunslinger: Apropos because he's a Cowboy Cop, will stomp up to a gun wielding perp and take them down. Sometimes he'll shout that he wants the perp alive before shooting to maim. The sound effect of his gun is even more booming (closer to a shotgun) than the other characters' guns.
  • Guttural Growler: Voightnote .
  • Hand Wave: Voight's introduction on Chicago Fire painted him as an outright crooked cop, covering up Justin's driving under the influence where he caused a fatal accident, then attempted to persuade, bribe then subtly threaten Matt Casey for his silence, including Casey's then-fiance Hailee Thompson. After his initial story arc, he was recast as a morally ambiguous but ultimately heroic figure. This discrepancy was eventually explained away in a brief scene in Season 2 where Voight admits to Olinsky that Justin's antics had put him in a bad place and he was lashing out at Casey out of frustration.
  • Heterosexual Life-Partners: With Olinsky and Platt. They go back nearly twenty years.
  • Hurting Hero: Voight is this and isn't he. Before the start of the series, he lost his wife Camille to cancer. Over the years, he's lost numerous fellow cops in the line of duty. Then his son Justin is murdered. In the season 5 finale, he goes over the edge after Olinsky, his best friend dies.
  • Hypocrite:
    • Voight will manipulate the truth, if not outright lie, if it means protecting himself or his team. However, he gets angry at others for lying to him. Regarding his unit, it's partially justified as he can't protect or take the heat for them if they do something off the books and lie to him about it.
    • Voight stops Olinsky from murdering the man responsible for his daughter's death, saying they had to go by the book. However, that didn't stop him from executing the man responsible for killing his son. Olinsky even points this out. Though, Voight made a valid point that thirty-eight other families were also looking for justice against the perpetrator.
  • If I Want Your Opinion: Voight, to pretty much everyone. He even tells Lindsay, when she questions not being told something she considers important, that if she doesn't like what he does she's free to transfer.
  • It Runs in the Family: Voight's father, Richard was a cop.
  • It's Personal: Voight takes this trope to new, terrifying lengths. Most cops know that it's simply easier to stand aside and find something else to do while he's on a rampage.
    • In cases where cops are killed in the line of duty, Lindsay in season 1, mentions Voight always gets "that look in his eye." Most definitely, the death of his cop father when he was a child contributed to this.
  • Jack Bauer Interrogation Technique: Voight will use official interrogation rooms and techniques when investigating something that isn't time sensitive. But if the clock is running down, or he's in a really bad mood, Voight will show why the mere mention of his name will get many of Chicago's criminals shaking in fear.
    • His "enhanced interrogation techniques," and their shady legality, are even lampshaded during a crossover episode with Law & Order: Special Victims Unit: when he begins to physically interrogate a suspect in front of Olivia Benson. She (having been partner to Elliot Stabler, who acted in the same way) immediately tells him to stand down with an explicit warning:
    Benson: "I'll remind you that you being here is a courtesy. If you do that again, I'll arrest you."
  • Jerk with a Heart of Gold: Voight is one of Chicago's more ruthless cops but his take-no-prisoners approach is truly because he wants to protect and serve the public. He's also fiercely protective and loyal towards his unit, his fellow cops, his family and will go to great lengths to help young people who genuinely want get out of a life of crime.
  • Just a Flesh Wound: When Voight is shot in the arm in "What Puts You on That Ledge,” he says he does not need an "ambo," just a drive to Chicago Med. His arm is in a sling at the end of the episode.
  • Kick the Son of a Bitch: Voight more or less makes a hobby out of this trope.
  • Knight Templar: Voight is liberal in his use of Blackmail, scheming, and Police Brutality to solve the cases he and his unit work, whether to fish out information, terrorizing, sometimes torturing suspects for info, committing perjury to put the crooks he arrests away, and well able and willing to take the law into his own hands when it suits him.
  • Knight Templar Parent: Voight will cross even more lines when it comes to Justin, known for bailing his son out of many felonies. Most notably, during their introduction in Chicago Fire, when Justin was driving under the influence, causing an accident almost killing a man and his son, the boy ended up paralyzed, it was implied Voight was pinning the blame on the innocent father for the accident. When Lt. Matt Casey attempted to file an truthful report, Voight went all out to prevent Casey from doing so, including bribery, threatening him and his then-fiance Hailee Thomas, and attempting to have Casey silenced by force, all to keep Justin, "the son of a cop" out of prison.
    • In "The Price We Pay", we learn Justin fell in with a career criminal named Joe Catalanoe, who forced Justin into being a murder accomplice, and Voight almost certainly had the criminal killed by drowning.
  • Lost Lenore: Voight lost his wife Camille to ovarian cancer a few years before the series started.
  • My Way or the Highway: Voight, to pretty much everyone, pretty much all the time.
    • Slightly lampshaded in (appropriately) "My Way." Voight comments that if Commander Perry ever actually compliments him and his team, he'll take everyone out to karaoke. When asked what he'd sing, Voight replies "My Way."
  • Necessary Evil: How and what Voight sees himself and his more shady approach to police work as.
    Voight: "The difference between dirty and necessary. Like it or not, you and all your self-righteous friends in the Ivory Tower ... you need people like me out on the streets. Doing the things that regular cops are unwilling to do. Going the extra mile. To make sure the truly evil, the truly dangerous ... go away. I thin the herd for the greater good."
  • Non-Answer: Voight is a master at this, rarely answering questions he doesn't want to answer, even if his team is legitimately in need of more information about a situation.
  • Old-Fashioned Copper: Probably the best way to describe Voight is that he is an American version of this trope.
  • Oh, Crap!: Voight, when he realizes two of his detectives are walking right into the arms of El Pulpo.
  • Outliving One's Offspring: The season 3 episode "In A Duffle Bag", Voight reveals to Lindsay Justin was a twin and his sibling was stillborn.
    Voight: "It was a girl."
    • In the season 3 finale, he's shattered after Justin dies from being shot, so much so he executes the offender.
  • Papa Wolf: Voight goes out of his way to terrorize even innocent people in an attempt to protect his son. But he comes to realize the the kid needs a form of discipline that he himself isn't willing to dispense so he drives Justin to a recruiting station to get him away from Chicago, and a number of felony charges ... then it's very much implied he killed Joe Catalanoe who'd duped Justin into being an accessory to murder.
    • Voight's protective streak extends to his fellow cops, whom he considers to be his extended family. He will go through fire to protect and help them.
  • Parental Substitute: Voight and his late wife for Lindsay. When she was 15, they took her in, helped her stay away from a life of crime. Voight has always been more of a parent for Lindsay than both her birth parents have ever been.
  • Pay Evil unto Evil: Voight, alongside Olinsky, proves he is willing to commit outright illegal acts to get particularly heinous criminals off the streets. Back in the day, the two of them and fellow Cowboy Cop Jimmy Shi apprehended a crook, Browning who murdered a cop named Eddie Penland who was Olinsky's partner. Browning never made it to prison because the three took him "for a boat ride."
    • He decides he and Olinsky will do this to Adrez Diaz aka Pulpo after the notorious drug kingpin kills multiple cops and fatally shoots Antonio, and once he's recaptured orders everyone to go off-the-books for them, though Jay and later Olinsky talk him out of it.
    • In the closing moments of season 3, he executes Justin's murderer with no hesitation or remorse.
  • Properly Paranoid: Voight keeps all his money and valuables in a safe hidden in his basement. He also has surveillance cameras around his home and won't answer his door after dark without a gun in hand.
  • Red Oni: Though both are CowboyCops, Voight is more outspoken and aggressive in contrast the soft-spoken and reserved Olinsky.
  • Roaring Rampage of Revenge: Do not piss Voight off. He'll burn down the city if it means catching people who target him, his team, or his family. In Season 2, "An Honest Woman", Voight gets robbed and the woman who's pregnant with his grandchild is tortured. He reaches a new level of brutality in trying to find those responsible.
    • He goes over the line again in the Season 3 finale, torturing suspects in a revenge mission to hunt down Justin's murderer and ...
    • ... again in the Season 5 finale "Homecoming", after his best friend Alvin Olinsky is stabbed in prison and later dies, giving a No-Holds-Barred Beatdown on the crook who committed the deed and executing the who ordered the hit.
  • The Soul Saver: Voight can be quick to pull the trigger and covering up his unit's more brutal activities, but he generally doesn't allow the cops serving under him the same leeway, best seen when he talks Trudy out of offing the guy who killed her father.
    • In Season 6, "Brotherhood", he's fully intent on taking the blame for an Accidental Murder committed by Antonio then angrily reprimands Ruzek for confessing to it before him, arguing it's his job to protect the unit.
    Voight: "This is my unit! My unit. I take the heat. I take the bullets!"
  • Standard Cop Backstory: Voight's father, who was also a cop, was killed in the line of duty when Voight was 8.
  • The Stoic: Voight practically invented the concept of poker face.
  • Transplant: Initially introduced in a recurring role on the first season in Chicago Fire.
  • Team Dad: He's very fiercely protective of the team, especially to Lindsay, who he helped raise.
  • Torture Technician: Voight uses his reputation to terrorize suspects and inflicts pain on those who don't fear him. Olinsky often provides backup or runs interference while this is happening.
  • Tough Love: At the end of the first season Voight sends his delinquent son to the Army. When Justin returns in Season 2, it's clear that his father's desperate act was good for him, as Justin's entire attitude is different.
  • True Companions: He is this with Olinsky, the two of them having served as cops for nearly two decades, the both of them willing to go for bat for each other
  • Would Hit a Girl: When tracking down the crooks who robbed him Voight makes it abundantly clear he is willing to beat a woman with a baseball bat if she doesn't talk. But then her friend walks out of the bathroom and Voight decides to terrorize the woman by breaking the friend's fingers instead.
    • Especially in 4x16, when Atwater and Ruzek are imprisoned in a basement behind a reinforced steel door, Voight forces the guilty party - an elderly woman - responsible into give up the access code, by stabbing her hand with a flick-knife.
  • Wouldn't Hurt a Child: Despite being fairly ruthless toward criminals (and most people in general), Voight actually has quite a soft spot toward kids, particularly ones in trouble. Erin Lindsey, for instance, is the teenage daughter of a junkie and Voight took her in and raised her as his own, and has throughout the years helped a variety of kids he's encountered through his police work.
  • You Have The Right To Remain Silent: Voight is notable in that he doesn't read criminals their rights. When dealing with the worst of them he flat out denies them their rights.
    Perp: "You're going to read me my rights, officer?"
    Voight: "You got the wrong guy."
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    Jay Halstead 

Jay Halstead

https://static.tvtropes.org/pmwiki/pub/images/det_jay_halstead.jpg
Played By: Jesse Lee Soffer

Intelligence Unit Detective and former US Army Airborne Ranger who fought in Afghanistan.


  • Accidental Murder: In Season 5 opener "Reform", Halstead and civilian bystanders were under fire in a shooting, where he fired a single round back wounding an armed suspect ... with the bullet going through the perp, through a wooden door, and then hit an eight-year-old girl who later dies.
  • Action Hero: He has the rank of detective and was an army Ranger who did tours in Afghanistan.
  • Berserk Button: Halstead and people sexually abusing young boys, to the point that he was the prime suspect in the murder of one such pedophile. At least he's aware of what it does to him.
    Halstead: "Do me a favor and don't leave me alone with the swim coach.
  • Blood Brothers: Mouse and Halstead first met while serving overseas. As Season 3 unfolds, it becomes more obvious just how complex the dynamics of their relationship truly are, thanks to the experiences they underwent together at that time.
  • Butt-Monkey: All the time. Halstead's been kidnapped and tortured, accused of murder, been under fire from offenders where people he bonds have died right in front of him, suffers from PTSD and Survivor's Guilt from his time in the Army. On top of all that, his girlfriend Lindsay leaves just as he's planning to propose to her.
  • Chick Magnet: Had a brief relationship with Chicago Fire Gabriella Dawson, had attention of an ex-girlfriend Ali and his relationship with Detective Erin Lindsay.
  • Clear My Name: In Season 1, he is accused of murdering an alleged pedophile who he'd arrested for molesting and murdering the younger brother of his high-school girlfriend who beat the rap in court after the man's father bailed him out. Jay relentlessly harassed the family for years landing only putting himself under the microscope even more. He is cleared after the man's father confessed to killing the young man after realizing his son truly was guilty.
  • Cold Sniper: Subverted with Halstead. Despite serving in this capacity for the military and now the Chicago police, he is very feeling. He simply knows that sometimes it's the only way.
  • Fair Cop: He's not at all bad looking.
  • Heterosexual Life-Partners: With Antonio, who was responsible for bringing Jay into the unit.
  • Hot-Blooded: He's very brash and impulsive, and on the job, he's rather blunt and aggressive with his taking down suspects and interrogation tactics.
  • Idiot Ball: In Season 5, "Care Under Fire", Halstead pursues the sister of a suspect he is assigned to watch whilst undercover under his alias, then continues to date her even after the job is finished to distract him from his miserable home life. It bites him in the ass when the two of them become mixed up in the murder of a undercover federal agent, it comes out she's a drug dealer and recruits other dealers putting his credibility and job on the line for her, landing him in the doghouse with Voight.
  • The Lancer: He's the most action-oriented of the unit, given he was an Army ranger deployed to Afghanistan and the most commonly seen breaching addresses of suspects with rams.
  • Missing Mom: His and Will's mom died of cancer, which is a sore point for Will having previously harbored some resentment towards Will because he was "out partying" when she passed away.
  • Official Couple: With Lindsay. Until towards the end of Season 4.
  • Parental Issues: Understandably calls his father Pat a "crusty pain in the ass." Turns out his father never supported Jay enlisting or joining the Chicago police academy.
  • Platonic Life-Partners: With Hailey Upton.
  • Ranger: Halstead is an Army vet, having served in the rangers in Afghanistan.
  • Red Oni: Brash and Hot-Blooded, Halstead is this to his new partner Hailey Upton in Season 5.
  • Sex with the Ex: Halstead has an ex-girlfriend, Ali Corson from high school with whom he's still on great terms with, as well as with her parents. Whenever she's back in Chicago, they hook up.
  • Shell-Shocked Veteran: Jay suffered from PTSD from when he served in Afghanistan and occasionally has relapses whenever doing the job gets to him.
  • Shirtless Scene: Halstead, a couple of times.
  • Standard Cop Backstory: He was in the service.
  • Survivor's Guilt: Its obvious in many episodes via conversations and appearances that Jay suffers from immense guilt over his experiences overseas in Afghanistan where many of his brothers in arms died instead of coming home like him.
  • There Are No Therapists: Until mid-Season 5, under Voight's orders after his Trauma Conga Line and his Idiot Ball move in dating a murder suspect and drug dealer.
  • Transplant: Before the series pilot, he first appears in Chicago Fire season 2, as an undercover cop who works to shut down a dirty businessman threatening Firehouse 51's own Molly's and briefly dating Gabby Dawson.
  • Trauma Conga Line: In Season 5, after Lindsay's departure. In a shooting, he learns he fired a stray round that hit and killed an eight-year-old girl, after which his nightmares and trauma from serving overseas resurface. Then when he tries to get a fellow Ranger-turned-kidnapper out of the gutter, the guy is killed right in front of him, which almost pushes Halstead over the edge.
  • Yank the Dog's Chain: In Season 4, his romance with Erin is on the outs though they're still civil to and work together, and once Erin's career is on the line and her mother causes more trouble, Halstead decides he still loves her, deciding to propose and waits for her at ''Molly's, unaware that Erin has decided to head to New York to join an FBI task-force, leaving him.

    Adam Ruzek 

Adam Ruzek

https://static.tvtropes.org/pmwiki/pub/images/officeradamruzek.jpg
Played By: Patrick John Flueger

Intelligence Unit Officer.


  • Action Hero: Adam is originally a cadet in the police academy until he's assigned to Intelligence, later becoming a stellar cop in his own right.
  • Badass Beard: Averted the first couple of seasons, before growing it out starting in season 3.
  • Big Brother Instinct: Season 5 reveals he has a younger sister Kate who was once arrested for a DUI, which he tried to cover up and prevent the authorities from charging her and taking away her son Sammy, his nephew.
  • Blackmail: Unfortunately he's caught by Lt. Denny Woods who then holds his attempted cover up, his sister and nephew over his head to force Adam to be a spy in Intelligence.
  • Character Development
  • Commitment Issues
  • Cool Shades: Ruzek is regularly seen sporting darkened sunglasses on the job...even when it doesn't seem he'd need them and nobody else is wearing them.
  • Cool Uncle: Has a nephew Sammy through his sister.
  • Cowboy Cop
  • Disposable Fiancé: Wendy in Season 1.
  • Facial Composite Failure: Ruzek, unable to use the new software, hilariously outsources the composite to a rookie cop for a hamburger.
  • Heroic BSoD:
    • In "Chin Check", Adam is shaken and behaving eratically after he shoots a perp for the first time, putting him in the hospital and although he tries to play it off, the others in the unit encourage him to see a psychologist.
    • In Season 2, "Say Her Real Name", he's shaken and unshakeably motivated to solve the case when the victim dies in front of him minutes after got a call from her asking for his help during an undercover stint.
  • Heterosexual Life-Partners: With Olinsky and Atwater.
  • Hypocrite: In the Season 6 premiere, Ruzek throws beef in Dawson's face for not lying and backing Voight's story when Voight is under suspicion for allegedly executing the drug dealer who ordered the hit on Olinsky because Antonio had not yet arrived on the scene until after Voight opened fire, the same reason Ruzek made for not backing that of a fellow ex-cop/informant named Ray back in episode 19 of season 5 who claimed he fired a clean shot when he lost his badge.
  • Hurting Hero: Towards the end of Season 3 after Kim ends their engagement and then he finds out she and Officer Roman are going out.
  • Intergenerational Friendship: Eventually with Olinsky.
  • It Runs in the Family: Ruzek's father was a cop and worked with Voight and Olinsky back in the day.
  • Jerk with a Heart of Gold
  • Leeroy Jenkins: Ruzek starts out as an eager-to-please and impulsive cop who doesn't think ahead, charging into the action without backup. When Antonio's son is taken and they chase down a lead, he walks right in giving himself and the unit away to the perp that he manages to escape. He soon gets called out on this behavior from Olinsky after his cockiness causes friction during a stakeout and later a bust.
  • Mission Control: He becomes this occasionally working behind the computer after Mouse's departure.
  • New Meat: He's detailed to Intelligence in the series' pilot as they needed a fresh face as an undercover buyer.
  • Put on a Bus
  • Rabid Cop
  • Ship Tease: With Kim Burgess. Sparks start to fly in Season 1 after working together a few times. They become engaged in Season 2 finale, but Kim calls it off in Season 3 after she realizes his Commitment Issues, though they continue to dance around each other with a random kiss and a night of fun in Season 4 and 5.
    • In Season 6, he and new team member Hailey Upton start of as Friends with Benefits, though they do admit they start to develop something deeper.
  • Standard Cop Backstory: Ruzek's parents had an extremely vicious divorce when he was a child.
  • True Companions: Olinsky his mentor in all things being in Intelligence.
    • Later with his new partner Atwater. In "Captive", when Kevin is taken hostage for over a day and when they lose a lead to his location, Adam angrily calls Dawson out for shooting the suspect, who was about to shoot Burgess.
  • Undying Loyalty: In Season 5, after he's blackmailed by Woods for his sister's DUI, he eventually refuses to rat out Voight and the rest of the unit, knowing he'll have consequences to face for sweeping up his sister's DUI under the rug. Woods throws his family in his face, he fires back that Intelligence is his family.
  • Your Cheating Heart: He pursues and shares a kiss with Burgess while he's engaged to Wendy.

    Kim Burgess 

Kim Burgess

https://static.tvtropes.org/pmwiki/pub/images/officerkimburgess.jpg
Played By: Marina Squerciati

Patrol Officer, 21st District. Later an Intelligence Officer after being promoted in season 4.


  • 11th-Hour Ranger: She and Atwater are typically called up to Intelligence as backup and are possible candidates to be detailed to Intelligence. Later she and Roman in seasons 2 and 3.
  • Action Girl: She's been physically put through the wringer multiple times and always comes through with flying colors.
  • Beauty Is Never Tarnished: She takes a shotgun blast to the side of her face and upper body (her vest stopped the worst of it). Her wounds remain visible for a few episodes but they quickly fade save for some scars on her shoulder.
  • Berserk Button: After her sister's assault, (see below) she seems to have it out for rape victims.
  • Beware the Nice Ones: She's a Nice Girl, but that doesn't mean Burgess won't hesitate to kick some perp's ass, slap the cuffs on their wrists or do her utmost damnest to protect and save her fellow officers.
    • In "Grasping for Salvation", after her sister Nicole is brutally raped and ''sodomized'', she takes it personally to get justice for Nicole and catch her assailants, and when she does she gives one of them a No-Holds-Barred Beatdown. She also violently gets in her ex-brother-in-law's face after learning he hired a PI to spy on her during their custody battle for her niece, and refuses to let him take her niece Zoe home.
  • Break the Cutie: Later in Season 2, she and Roman have been taken hostage by gunmen with no backup and Roman fatally wounded and come close to being murdered more than once throughout the whole experience, it's really telling when she breaks down in Ruzek's arms at the end of the episode.
  • Can't Get Away with Nuthin': Burgess and Atwater, in Season 1; Burgess and Roman, in Season 2 as subordinates under Platt.
  • Cool Aunt: Has a cute relationship with Zoe, her sister's child.
  • Fair Cop: Being played by Marina Squerciati.
  • Genki Girl
  • Heroic BSoD: After she'd been shot with a shotgun blast above the shoulder, scarring her face, when she observes the fruits of her near-death experience.
  • I'm Okay!: Burgess, a physically small, female officer, claims to be just fine after sustaining a beating from a man who just beat the crap out of two of her male colleagues (one of whom was a former Army Ranger).
  • Intergenerational Friendship: Though Platt sometimes uses her as an errand girl and is a hardass towards her subordinates, she develop a rapport with the desk sergeant, looking up to her as a role model.
  • It's Personal
  • Never Live It Down: Having been in relationships with Ruzek and Roman, she's developed a reputation as a "badge bunny" in Olinsky's words and a lot of people don't take her police skills seriously as a result.
  • Nice Girl
  • Platonic Life-Partners: She has this with Atwater, staying friends with him while he's promoted up to Intelligence.
  • Put on a Bus: Kim takes a leave of absence to look after her big sister after her brutal rape. This was due to Squerciati taking time of for her maternity leave. In the Season 5 finale, she's back.
  • She Cleans Up Nicely: Burgess in "Chin Check," going for a night on the town with her flight attendant friends.
  • Took A Level In Cynicism
  • True Companions: With Atwater, then Roman in Season 2 so much so that as Roman is beating himself up over arguing with his ex when she was shot, she declines Voight's initial offer to be detailed up to Intelligence, saying she feels she still needs to learn something on patrol with Roman.

    Kevin Atwater 

Kevin Atwater

https://static.tvtropes.org/pmwiki/pub/images/officerkevinatwater.jpg
Played By: LaRoyce Hawkins

Intelligence Unit Officer.


  • 11th-Hour Ranger: He and Burgess are typically called up by Intelligence whenever they need the manpower.
  • Action Hero: Atwater is a beat patrol officer and a dedicated, solid cop. At the end of Season 1, he is detailed to the Intelligence Unit.
  • Black Best Friend: Atwater is this for Burgess and Ruzek.
  • Beware the Nice Ones
  • Big Damn Heroes
  • The Big Guy: The tallest and most physically imposing member in the Intelligence Unit.
  • Boisterous Bruiser: He's the muscle of the unit and a regular at Molly's, known by the firefighters at 51 for throwing great parties and is shown doing stand-up comedy.
  • Can't Get Away with Nuthin': Burgess and Atwater, in Season 1 when both working as beat cops under Platt.
  • Clear My Name
  • Dark and Troubled Past: In "Captive", its revealed Atwater shot and killed an aspiring gangster whom he knew from his own neighborhood named Ronnie a few years back when he was a beat cop. The young banger had killed a clerk, then refused to comply with Atwater and went for his gun. Kevin talks that he sees Ronnie's face as he goes to sleep every day.
  • Designated Driver: Atwater always drives the patrol car when partnered with Burgess.
  • Heterosexual Life-Partners: With Burgess and becomes this with Adam.
  • It's Personal
  • Like Brother and Sister: With Burgess.
  • My Sister Is Off-Limits!: Not with his sister, but a platonic example with Burgess when she and Ruzek pursue each other.
  • Mysterious Past: His parents are unnamed and absent from his life and his younger siblings Jordan and Vanessa live with him as his wards though it's not yet established as to why. Its implied in a conversation between Burgess and Jordan that Kevin gave up a lot to be able to raise and provide for him and Vanessa.
  • Oh, Crap!: Atwater messes up in season 2, "There's my Girl" leaving a cuffed suspect alone in the interrogation room with a soda can he gave him, which said suspect used to commit suicide. Voight temporarily bumps him back down to patrol and is put under investigation by IA.
  • Platonic Life-Partners: With Burgess. She also acts as an older sister for his siblings.
  • Promotion to Parent: Atwater, to his younger siblings Jordan and Vanessa.
  • Standard Cop Backstory: Atwater's parents are unknown and has custody of his younger brother and sister.

    Trudy Platt 

Trudy Platt

https://static.tvtropes.org/pmwiki/pub/images/sergeanttrudyplatt.jpg
Played By: Amy Morton

Desk Sergeant, 21st District.


  • Always on Duty: No matter what time of day or night, we never see anyone at the desk but Platt.
  • Ascended Extra: A recurring character in season 1. She's promoted to main character the following season.
  • Blackmail: Platt has no qualms about using this when needed.
  • Crossover Ship: Starting in Chicago Fire third season, Mouch and Platt from the two shows are in a relationship.
  • Desk Jockey: Sergeant Platt works the desk of the 21st District's station house. She later explains that she was Antonio's training officer and took a shot to the hip while they were on patrol. Antonio managed to get her to safety but the injury meant that she'd be stuck behind a desk for the rest of her career.
  • The Determinator: She's determined to hunt down her father's killer in "All Cylinders Firing", so much so that not even the fractured orbital and other blunt force trauma she suffered at the start of that episode slow her down.
  • Desk Sergeant Nasty: Some of Trickster Mentor tactics border on this, especially where Burgess is concerned.
  • Dirty Harriet: Platt tells Lindsay and Burgess in passing she used to work undercover as a street worker twenty years previously before the series. At their looks of skepticism, she admits it was really 25 years ago.
  • Friend to All Children: Despite her hardass attitude, Trudy gets along well with kids, being protective and hospitable towards younger people who enter the 21st district as victims or witnesses to the crimes. Some kids eventually open up to her.
  • Happily Married: With Chicago Fire Mouch.
  • Heterosexual Life-Partners: She has this camaderie with Voight and Olinsky.
  • Jerk with a Heart of Gold: Platt loves nothing more than to toy with her subordinates but gives lessons to be learned (in a very roundabout way) from the hell she puts them through. She also takes Nadia under her wing and will do what she can to help the officers in her district if they're in genuine need of it.
  • Ladykiller in Love: A gender flipped example - Platt finds herself smitten with Mouch from Chicago Fire and they enter into a relationship.
  • Mama Bear: Platt has a strange way of showing it but she's fiercely protective of all the cops in her district.
  • A Mother to Her Men: Platt, to not just Burgess and the junior members of Intelligence, but to all the dedicated cops working under her.
  • O.O.C. Is Serious Business: Any time Sergeant Platt drops her jerkass persona and starts speaking earnestly means something's gone very, very wrong.
  • Really Gets Around: Platt, if her stories about herself are to be believed. She's apparently been with dozens of men over the years, including a significant chunk of her class at the police academy.
  • Revolvers Are Just Better: Platt carries a Colt revolver instead of an automatic; as a rookie, she nearly died in her first gunfight when her gun jammed. Her partner went and got her the revolver since it doesn't jam.
  • Roaring Rampage of Revenge: In Season 4, "All Cylinders Firing", her dad is murdered by a felon she worked behind-the-scenes to put away and had business with her father that went south ... so she tracks him down, gives him a No-Holds-Barred Beatdown and was fully intent on executing him if Voight hadn't stepped in.
  • Shot in the Ass: Platt tells Ruzek that she was actually shot in the rear rather than the hip like she tells everyone, saying that her ass counts as her "high hip". She swears him to secrecy.
  • Stealth Mentor: in "Fagin" Detective Hailey Upton reveals that she joined the force because Platt had comforted her as a teenager in the wake of an armed robbery at her family's diner that resulted in her dad getting shot.
  • Trickster Mentor: Platt loves to mess with the patrol officers in her district, her favorite targets being Burgess and whoever Burgess is partnered with.
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    Hailey Upton 

Hailey Upton

https://static.tvtropes.org/pmwiki/pub/images/detectivehaileyupton.jpg
Played By: Tracy Spiridakos

Intelligence Unit Detective.


  • Action Girl: As with the other women in the district and Intelligence, Upton also holds the rank of detective from a meritorious promotion.
  • Actor-Shared Background: She's Greek.
  • Blue Oni: Calm, collected and aloof, Hailey is this to Halstead's Red Oni.
  • Brutal Honesty: Hailey will not hesitate to speak her mind if crap hits the fan.
    Hailey Upton: "Sorry, I'm Greek, I see tragedy in everything."
  • Dark and Troubled Past: had an abusive father.
  • Deadpan Snarker: Hailey does have her moments when she has the chance.
  • Heterosexual Life-Partners: She develops a rapport with Halstead. Burgess as well.
  • Icy Blue Eyes: Upton's cold blue eyes reflect her generally aloof, level-headed demeanor.
  • Lad-ette: Hailey is this being a cop, which reflects her attitude and sense of fashion, jean, jackets and blazers.
  • Married to the Job: Upton never shows any details of her personal life and says in a deleted scene with Halstead that she doesn't have one.
    Halstead: "You're incredibly aloof about your personal life."
    Upton: "I'm not aloof. I just don't have one."
  • Promoted to Opening Titles: For Season 5.
  • Sugar-and-Ice Personality: Upton comes across as obstinate and emotionless in her police work but is loyal and gets along with her fellow cops and compassionate and sympathetic to victims nonetheless.
  • True Companions: With Jay Halstead who becomes her new partner in Intelligence.
  • Two Girls to a Team: Upton has this dynamic with Lindsay briefly, but much more prominently with Burgess going into Season 5.

Former Main Characters

    Sheldon Jin 

Sheldon Jin

https://static.tvtropes.org/pmwiki/pub/images/officersheldonjin.jpg
Played By: Archie Kao

Tech and Surveillance expert (Season 1).


  • Asian and Nerdy: Downplayed with Jin. He's not especially nerdy, but he is the tech guy.
  • Crazy-Prepared: Jin realized that working in Intelligence meant that he and the rest of the unit would inevitably come under heavy scrutiny. In order to counter that, he electronically monitored the activities of every cop he could, including some very high up the chain of command, and dug up a lot of dirt in order to have some leverage in the future.
  • Killed Off for Real: Jin is killed in the first season finale.
  • Mission Control: He's this for the Intelligence Unit.
  • The Mole: Voight is convinced someone in his unit is a spy for Internal Affairs, and strongly suspects Sumner who IA placed in his unit. Its actually Jin.
  • Non-Action Guy: Though he is referred to as "Officer" and is seen carrying a firearm, he doesn't go out on the field, being relegated to tech support for the unit.
  • Token Minority: He's of Asian descent in the Unit.
  • Undying Loyalty: To Voight, doing anything off-the-books, disposing of incriminating evidence etc, that he tells Jin to do. Subverted towards the end of season 1, where it's revealed Jin is a spy for IA Sergeant Edwin Stillwell, though unwillingly.

    Sean Roman 

Sean Roman

https://static.tvtropes.org/pmwiki/pub/images/officerseanroman.jpg
Played By: Brian Geraghty

Patrol Officer, 21st District.


  • Can't Get Away with Nuthin': Burgess and Roman, in Season 2.
  • Hot-Blooded: Moody and confrontational by default. He even punched another cop when the guy disagreed with him in a crisis.
  • Put on a Bus: He decides to leave Chicago to find a fresh start with the San Diego PD at the end of Season 3.
  • It's All My Fault: When Burgess was shot doing a drop-by and talk whilst he was arguing with his ex over their failed relationship.
  • Relationship Upgrade: With Burgess towards the end of Season 3.

    Erin Lindsay 

Erin Lindsay

https://static.tvtropes.org/pmwiki/pub/images/chicago_pd_erin_lindsay.jpg
Played By: Sophia Bush

Intelligence Unit Detective.


  • 10-Minute Retirement: Turns in her badge at the end of the second season finale, soured up on police work after Nadia's death and an attempt to kill her by crooked cops. She returns to Intelligence in the season three premiere coming to Jay's rescue after his undercover operation is compromised.
  • Action Girl: She's a police detective and when it comes down to it Lindsay really kicks ass.
  • Arch-Nemesis: Greg Yates who murdered, tortured and raped Nadia, who she then faces off with before she shoots him. Later, she admits she was relieved to be the one to shoot him.
  • Berserk Button: Crooks abusing and harming younger, more vulnerable victims, whom she seems to sympathize with considering she was in a similar position.
  • Big Sister Instinct: She watches out for her stepbrother Justin and tries to help Voight keep him in line. Also develops this for Nadia in helping her get clean and get a job.
  • Birds of a Feather: With Nadia. Which makes it all the more crushing when Nadia's killed.
  • Break the Cutie: Her depression after Nadia's horrendous death, a perp getting the jump on her having a gun pointed at her face, then corrupt cops breaking into her home. Her new depressive disposition is gets so bad she almost quits the force.
  • Class Reunion: In Season 1, Lindsay begs Halstead to escort her to hers, pretending he is her extremely wealthy and successful fiance in order to impress the snobby girls who ridiculed her as a teen. Although he doesn't approve, Halstead agrees to go, but just outside the hotel, Lindsay changes her mind about going inside.
  • Crossover Ship: Severide from Fire and Lindsay from PD started a relationship, which Lindsay ended after Severide, still reeling from Shay's death, kept bailing on her.
  • Daddy's Girl: Although she's not his actual daughter, either biological or adopted, Lindsay and Voight have an incredibly close relationship. She tries to emulate Voight in many ways, even affecting a slight rasp in her voice as a subtle and possibly unconscious way to sound more like him, and always defends his actions, even when everyone else is against him, and he in turn tries to protect her physically in an often dangerous job.
  • Descent into Addiction: Lindsay, at the end of Season 2, following Nadia's rape and horrendous death.
  • Disappeared Dad: Her biological father is not known.
  • Don't You Dare Pity Me!: Lindsay (quite understandably, as she is the child of a junkie mother and a father serving life in prison.)
  • Fair Cop: Smart, tenacious and tough, not to mention easy on the eyes, played by Sophia Bush.
  • Family of Choice: Lindsay and Voight. After a meeting with her mother, during which she is told that Voight is not her family, Lindsay goes straight to Voight, simply to tell him that he definitely is.
  • Freudian Couch: Averted. Lindsay has met with Dr. Charles in a coffee shop, and they've even chatted unofficially at Molly's.
  • Guttural Growler: She has a rather husky voice, though it's implied to be a deliberate affectation to emulate Voight.
  • I Let Gwen Stacy Die: A platonic example. She was being targeted by the suspect Greg Yates which lead to him abducting, raping and murdering Nadia. Lindsay is devastated over this fact feeling immense guilty thinking her investigating the perp in the case lead to her death.
  • Jack Bauer Interrogation Technique: She does this in "Army of One" on a pedophile/kidnapper, pistol-whipping him and forcing her gun down his throat to force him to give up the location of the kidnapped boy in the interrogation room. It backfires on her when she's called to the Chicago PD review board, placed on leave, facing the possibility of never being a cop again, so she accepts a deal with the FBI to move to New York City.
  • Like a Daughter to Me: Lindsay is this to Voight.
  • Missing Mom: When she was 15, Lindsay's negligent, drug-addicted mother simply didn't come home one night. She appears in the Season 2 premiere, calling Lindsay repeatedly, only to have her ignoring the calls. Lindsay finally goes to meet her mother, whom she says she hasn't spoken to in eight years, implying there was some contact between the two after Lindsay moved in with the Voights.
  • My God, What Have I Done?: In Season 4 "Fagin", she guns down an offender armed with a sub-machine gun in her direction. Her face when she sees his after removing his helmet says it all that she'd just killed a teenage boy.
  • Not Blood Siblings: Voight's son Justin has shown quite a bit of attraction toward Lindsay, kissing her on the mouth and showing jealousy at her perceived relationship with Halstead. Even though they aren't biological siblings, she was 15 when Voight and his wife took her in, and Justin significantly younger, meaning he really should be thinking of her as a sister.
  • Official Couple: With Halstead. Though, their obvious connection is initially forbidden by Voight, they start a steady relationship in Season 3 until the end of Season 4 after he reveals he's legally married.
  • Parental Substitute: The Voights for Lindsay, after he took her in at age 15. Lindsay is later moved to tears at the memory of Voight's wife and how the woman was the one who actually got her to clean up her act.
  • Penny Among Diamonds: Lindsay tells Halstead that when the Voights took her in, they transferred her to a private school full of rich kids who were only friendly until they learned the truth about her background.
  • Put on a Bus: In "Fork In The Road," the threat of being charged with aggravated assault for pistol-whipping a cuffed child molester in "Army Of One" leads her to join the FBI and go to New York City.
  • She Cleans Up Nicely: Lindsay, when heading out to her high school reunion and goes undercover at a sex club.
  • Standard Cop Backstory: Lindsay, whose mother was a junkie and father is in prison, bounced around foster homes.
  • Street Urchin: Lindsay, growing up with a junkie mother, until she meets Voight at age 14 and is taken in by him and his wife at age 15.
  • There Are No Therapists: Averted when Lindsay starts talking to Dr. Daniel Charles from Chicago Med in "Actual Physical Violence." She's reluctant at first, but agrees at the end of the episode.
  • Undying Loyalty: For her father figure Voight who took her in off the streets and gave her a good life, so much so she repays him by disposing the body of Justin's murderer after the authorities were closing in on him for killing the suspect and staying quiet.
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    Alvin Olinsky 

Alvin Olinsky

https://static.tvtropes.org/pmwiki/pub/images/detectivealvinolinsky.jpg
Played By: Elias Koteas

Intelligence Unit Detective, Army veteran, and longtime friend and partner of Hank Voight. He was knifed in prison after being arrested and later died of his wounds in the hospital in the season Five finale "Homecoming"


  • Action Dad: Olinsky has the rank of senior detective and a daughter Lexi. It's revealed in Season 2 finale he has another daughter Michelle Sovana by another woman.
  • Adult Fear: After Lexi witnessed a gang shooting, his generally unflappable manner is replaced with a frantic worry, she'll have a target on her back if she comes forward as a witness.
  • Beware the Quiet Ones: Olinsky is quiet and reserved, but that all hides just how badass and dangerous he can be to those who don't see so immediately or those who piss him off. When his wife Meredith is taken hostage at gunpoint by two hooded home invaders to blackmail him into giving them back their heroin, he shows them just how much. One gets killed. The other? Olinsky came right up from behind the crook and in seconds points a commandeered gun to his head.
  • Blue Oni: Reserved, soft-spoken, thoughtful and quiet, Olinsky is this to Voight's Red Oni.
  • Character Death: In the penultimate episode of Season 5, while in prison he's knifed by an inmate. He dies from his wounds in the finale.
  • Cold Sniper: Shares this with Halstead. And he definitely fits the 'cold' part.
  • Cowboy Cop: Alongside Voight, Olinsky plays fast with the rules of serving the city of Chicago in the cases Intelligence works, including taking the law into his own hands, though to a lesser degree.
  • Cynical Mentor: He's this for Adam Ruzek when the rookie is detailed for Intelligence, coaching him in surveillance and undercover assignments.
    • In Season 4, he's now this for Kim Burgess. One lecture in particular carries a heavy subtext of "Don’t turn into me."
  • The Confidant: For Voight.
  • Experienced Protagonist: He's been a cop as long as Voight.
  • Heterosexual Life-Partners: He, Voight and Platt go back nearly twenty years.
  • It's Personal
  • Jack Bauer Interrogation Technique: Olinsky gets properly angry when investigating people smugglers and Voight actually has to step in and pull his friend back from going too far with this style of interrogation.
  • Killer Cop
  • Nice Hat: Olinsky is never seen without a dark woolen winter hat...not at work, not at the bar, not at home at his own family dinner table.
  • Outliving One's Offspring: In "Emotional Proximity", he is devastated when Lexi dies from her injuries from an arson fire.
  • Papa Wolf: For his daughter, Lexi.
  • Standard Cop Backstory: Olinsky was in the service. Also, his marriage fell apart and he moved into his garage in order to be close to his daughter. He and his wife are starting to patch things up but then she kicks him out completely upon the discovery that Olinsky has a previously-unknown daughter by another woman.
  • The Stoic: Generally emotionless and soft-spoken all the time.
  • Torture Technician: Voight uses his reputation to terrorize suspects and uses pain on those who don't fear him. Olinsky often provides backup or runs interference while this is happening.
  • True Companions: With Voight.
  • Undying Loyalty: For Voight and vice versa, the two of them always going to bat for one another when they each carry out their own brand of justice, Olinsky typically running interference when Voight does something "off-the-books".

    Antonio Dawson 

Antonio Dawson

https://static.tvtropes.org/pmwiki/pub/images/seniordetectiveantoniodawson.jpg
Played By: Jon Seda

Intelligence Unit Senior Detective. Older brother of Paramedic/Firefighter Gabriela Dawson from Chicago Fire.


  • Action Dad: Antonio has the rank of Senior Detective and has a son Diego and a daughter Eva.
  • Adult Fear: Antonio's worst fears come true at the end of the pilot, when Diego is kidnapped. In Season 6, "Descent", Eva is taken as a result of his painkiller addiction coming to light.
  • Arch-Enemy: In season 1, Adrez Diaz aka Pulpo who killed Antonio's partner Jules and had his son Diego kidnapped. Pulpo even attempts to kill him when he escapes.
  • Berserk Button: Cases where little kids are the victims really hit close to home with him. Definitely doesn't help that he's a father.
    • He once delivered a No-Holds-Barred Beatdown on a registered sex offender who was a suspect in the murder of a tender age boy, that Voight had to step in and restrain him.
    • Another case with a 6 year old murder victim at the hands of a banger affects him hard that he's close to tears when interrogating the gang member in question.
  • Big Brother Instinct: For Gabriella Dawson.
  • Blue Oni: To Voight's Red Oni. Antonio is the level-headed, honest cop who does everything by the book, who comes into conflict with Voight's more ruthless convictions and code.
  • Break the Cutie: Dawson's under so much pressure in season 2 what with his divorce from his ex and his trying to support his children. He lands a second job in private security for some extra money ... until his client is murdered under his watch, that he risks losing his pension.
  • By-the-Book Cop: He is a decent and honest cop who generally follows police procedure in the course of his work and comes to disagree with many of Voight's more ruthless methods. However after his son Diego is kidnapped he makes an exception to find his kidnapped son (see Jack Bauer Interrogation Technique).
  • Commuting on a Bus: Midway through Season 4, Antonio moves to the State's Attorney's Office, though he keeps in contact with Intelligence and is seen from time to time for the rest of the season, though starting Season 5, he's makes a comeback to CPD.
  • Dashing Hispanic: He's of Dominican descent, sports a Shirtless Scene now and then.
  • Descent into Addiction: In Season 6, Antonio becomes addicted to painkillers after an injury on the job. It gets so bad in episode "Descent", he starts buying on the street and gets in too deep with dealers that results in Eva being kidnapped.
  • Death Glare: Antonio has a rather impressive one.
  • Good Old Fisticuffs: Antonio's a boxer, runs a boxing gym and it shows whenever he has to face off against a perp.
  • Good Parents: To his son and daughter despite the little time he ever does get to see them.
  • Happily Married: In season 1 to his wife Lauren. Subverted after the finale when she files for divorce, takes custody of the kids and moves away before season 2, because of the stress of Antonio's job.
  • The Heart: Is this to the Intelligence Unit, being a level-headed, likeable all-round Nice Guy. Voight even says the unit came together when he took Antonio on.
  • Heterosexual Life-Partners: With his partner, Julia 'Jules' Wilhite who is killed in the series' premiere. Also with Halstead and Voight.
  • Jack Bauer Interrogation Technique: In "Wrong Side of the Bars", with time running out to find Diego's kidnappers, Voight convinces Antonio to beat the truth out of a suspect.
  • May–December Romance: Has this with Chicago Fire Sylvie Brett.
  • Nice Guy: Antonio Dawson, definitely.
  • Number Two: To Voight in the Intelligence Unit, often taking command whenever Voight is unavailable.
  • Odd Friendship: With Voight. Antonio was who arrested him for his actions towards Matt Casey. Morseso, Antonio is the more level-headed By-the-Book Cop while Voight is a ruthless Cowboy Cop who's prone to beating suspects, and the two are known to lock horns over their differing ideologies. While working together in Intelligence however, Antonio gains a newfound respect and common ground with Voight after his methods lead to safely rescuing Diego, then when Antonio covers for Justin's role in a murder, and passing up on being offered Voight's job.
  • Papa Wolf: Towards his children. Two crooks involved in the kidnapping of his son Diego found out the hard way.4
  • Put on a Bus: A painkiller addiction combined with him murdering an unarmed suspect resulted in Voight stating he'd dropped him off at a rehab facility at the beginning of Season 8. In the following episode, it is revealed he is moving to Puerto Rico with Gabby.
  • "The Reason You Suck" Speech: He gives one to Gradishar after she tries to use him as a rat. Reminding her that she had met him 15 years before when she investigated his partner, Sean Patterson for double-dipped overtime pay that had been because Patterson mistakenly filed the wrong paperwork. But Gradishar wanted to make a name for herself and went after him harder, resulting in the loss of his pension and job, and Patterson's suicide a year later.
  • Standard Cop Backstory: Dawson's job leads to his getting divorced and he rarely gets to see his children.
  • Team Dad: One of the more senior members in Intelligence and thus more supportive and reliable to his teammates in contrast to Voight's more ruthless approach.
  • Team Spirit: Antonio is a loyal, protective team player to the core, and never lets his teammates down. Even when he obviously suspects Voight's more extreme methods and the ruthless sergeant comes under suspicion by the brass, he remains completely silent in no small part due to Voight playing a part in saving Diego despite their history.
    Antonio Dawson: (to Voight) "You and I might disagree on certain things but I don't do business like that. Never have."
  • Transplant: Antonio is the most notable example within the Chicago verse, appearing and starring across three shows. In Chicago Fire, he's a recurring character being Gabby Dawson's brother, before starring in the series as a main character on PD.
    • In Season 4, he then makes his move to star in the short-lived Chicago Justice until his return to PD in Season 5.

Recurring Characters

Family Members

     Justin Voight 

Justin Voight

Played By: Josh Segarra

Voight's troublesome son.


  • Action Dad: After his Character Development he's now making the Army his career and has his own son, Daniel.
  • Character Death: Is killed in the Season 3 finale.
  • Delinquents: Justin has a history for getting into legal trouble, including bar fights, having been first introduced on Fire having caused an vehicular accident after driving under the influence.
  • Missing Mom: His mother, Camille, Hank's wife was killed a few years before the start of the series.

     Lexi Olinsky 

Lexi Olinsky

Played By: Alina Taber

Olinsky's daughter with his wife Meredith.


     Meredith Olinsky 

Meredith Olinsky

Played By: Melissa Carlson

     Bunny Fletcher 

Barbara "Bunny" Fletcher

Played By: Markie Post

Lindsay's flighty mother; a former drug addict who constantly tries to reinsert herself back into Lindsay's life despite being estranged from her.


  • Abusive Parents
  • Bitch in Sheep's Clothing: Almost every altruistic or maternal act by Bunny is part of some scheme to reinsert herself back into Erin's life; ratting out a robbery crew who murdered two hostages (it backfires when Bunny's role in covering their tracks is revealed), claiming that ex-convict Jimmy Sanguinetti is Linday's father (he's proven not to be thanks to a DNA test Halstead runs; whether Bunny is genuinely surprised or lying is left open to conclusion) and playing a battered girlfriend of a career criminal (she's the one who murdered him and stole his stash of stolen pharmaceuticals. Also; Erin has bigger problems than her mother playing Black Widow.
  • Consummate Liar
  • Never My Fault
  • Ungrateful Bastard: One of Linday's most vivid childhood memories of Bunny is trying to revive her after a drug overdose, all the while being unable to call an ambulance lest DCFS gets involved. Upon being revived and vomiting all over Lindsay, Bunny's first reaction is to demand cigarettes.
  • Wounded Gazelle Gambit: Her last scheme at reconnecting with Erin involves her playing a battered girlfriend of a career criminal. She's the one who murdered him.

     Olive Morgan-Voight 

Olive Morgan

Played By: Caroline Neff

  • Widow Woman: After Justin's death in the Season 3 finale.

CPD Members and Employees

     Ron Perry 

Cmdr. Ron Perry

Played By: Robert Wisom

     Bruce Belden 

Lieutenant Bruce Belden

     Nadia Decotis 

Nadia Decotis

Played By: Stella Maeve

A hooker and heroin addict in Chicago, who Lindsay arrests and later mentors, eventually becoming her roommate.


  • Character Death: She dies at Greg Yates's hands in a crossover arc with Benson's New York squad.
  • Heel–Face Turn: Calling her a "heel" is pushing it, but she goes from a minor perp to an unofficial member of Voight's team with ambitions to attend the police academy at some point.
  • Too Good for This Sinful Earth: She's very gentle, and her death goes to show just how depraved Greg Yates is. Her death affects Erin, the Chicago squad, and the SVU squad, all to varying degrees.

     Mia Sumner 

Detective Mia Sumner

     Fischer 

Commander Fischer

    Greg "Mouse" Gerwitz 

Greg "Mouse" Gerwitz

Played By: Samuel Caleb Hunt

Tech and Surveillance expert (Season 2 to Season 4). He was in the same Army unit as Jay.


  • Badass Bookworm: Mouse, Intelligence's new tech expert, is slight-statured, twitchy, and speaks in a soft voice. He's also a former Army Ranger and a combat veteran who continues to suffer from PTSD.
  • Badass in Distress: Mouse, the Intelligence Section's tech expert and formerly of the 75th Ranger Regiment, is taken hostage by a former Marine desperately trying to get the police find his daughter. Judging by how quickly he disarmed the hostage taker and Halstead's annoyance, it's clear that Mouse could have gotten out at any time but chose to stay because he thought the man needed a sympathetic ear.
  • Blood Brothers: Mouse and Halstead first met while serving in Afghanistan. As Season 3 unfolds, it becomes more obvious just how complex the dynamics of their relationship truly are, thanks to the experiences they underwent together at that time.
  • Desperately Looking for a Purpose in Life: Mouse is not satisfied with civilian life, but he feels awkward with becoming a cop. When he is offered a chance to re-enlist, he jumps for it, but a rift between him and Halstead grows, especially with both Halstead and Voight opposing him.
    Mouse: "I was born to be a soldier…when it comes down to it, I’ll die one!"
  • Only Known by Their Nickname: Mouse, who was only referred to as Greg Gerwitz when he initially came to Intelligence.
  • Put on a Bus: Platt wipes his felony, allowing him to re-enlist. He and Halstead reconcile before he ships out.
  • Shell-Shocked Veteran: When Mouse is first hired, Platt asks him questions about his military discharge. About all he can say is "that day," looking haunted, until Platt takes mercy and moves on.

     Emma Crowley 

Commander Emma Crowley

Criminals

    Andres "Pulpo" Diaz 

Andres "Pulpo" Diaz

Played by: Arturo Del Puerto

A drug dealer and an old nemesis of Dawson.

    Kevin Bingham 

Kevin Bingham

Played By: Joseph Sikora

A burglar who is the primary suspect in the season 3 finale whom murders Voight's son Justin.


  • Bastard Boyfriend: He used and planted hooks into an old girlfriend of his to have her give up clients with hefty payouts from her law firm, and once she wanted out of his burglary ring, he had her killed by slitting her throat..
  • Chekhov's Gunman: In Season 5, his body is found and becomes the smoking gun during the feud between Voight and Lt. Denny Woods.
  • Kick the Son of a Bitch: Voight has Bingham forcibly kidnapped, using his own MO, bound in barb wire in the trunk of a car, has him dig his own grave and executes him for murdering Justin.
  • Sadist: Ties his victims' wrists and ankles in barb wire and leaves them to die a slow death in the trunks of car.
  • Would Hit a Girl: He murders one of his accomplices who was his teenage girlfriend when she tries to back out by slashing her throat.
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