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Trudy Platt is the Desk Sergeant at 21st District of the Chicago Police Department. She was the immediate superior of Kim Burgess and Kevin Atwater before their promotion to the Intelligence Unit. She is married to firefighter Randall McHolland. She is portrayed by Amy Morton.


Before taking the desk job, Sergeant Platt was a uniformed patrol officer and was the training officer for Antonio Dawson. Platt has passed the detective's exam twice but was shot in the lower back side of her hip and had to take a less physical role as the desk sergeant at District 21. This is most likely one of the reason she is nicer to the detective's then the patrol officers. In an episode where all employees had to take a photo for ID's, she took bad photos of Burgess and Atwater. However, when it came to Lindsay she made sure she looked good. The same with Dawson. An interesting subtlety about her character is that she appears to have a holstered .38spl Revolver opposed to the standard issued Glock that most other characters in the series favor.

In 2003, Trudy was part of a Robbery-Homicide unit at the time, until it was solved, all the while worrying for the health of her father. This event, combined with the countless childhood abuse, inspired Upton to become a policewoman, where she originally became a member of that same Robbery-Homicide unit.

Trudy was well acquainted with both Hank and Alvin being there from the start of their careers. To that end she was well aware of their personalities and got along with both of them due to her similar personality. Trudy even understood that they had to take justice in their own hands.

Trudy Platt is very hard on Kim Burgess and Sean Roman, she always tries to make them feel bad and under appreciates them very often. She will often pick on Burgess about her relationship with Adam. However, there are moments where they are nice to her vice-versa. She was once harsh to the intern Nadia but loosen up after Nadia remembered her birthday and gave her a card. She was even willing to drive Nadia to take her test.

Trudy married Randall McHolland, a firefighter from Firehouse 51 and a character in Chicago Fire. (see Plouch for more information)

Her father, Robert Platt, was murdered in All Cylinders Firing. Even while she was injured during those events, she still pursued to avenge him by the deaths of his killer; Voight only manages to talk her out of this, despite having carried out this act before.

In the episode Fathers and Sons, Platt states that she dropped out of Loyola in her third year so she could move to LA to be with her boyfriend. She also talks about how she was in a heavy metal rock band called 'Black Ice' where she played keyboard.


Trudy is a hard headed Sergeant who is very tough on everyone. She is a strong, almost ‘Amazonian’ like woman and will take it personally if someone crosses her or does not do things her way, even when it’s the right thing to do, showcasing a self-righteous side as well. She will retaliate by giving officers bad patrol cars or bad jobs like cross walks. She will try not to get involved in people's personal lives. However like anyone she does find herself involved. Platt has mentioned that she slept with half of the guys in the academy. Most workers will try not get to know her because she is very hard to read. She does not give off a lot of emotions as her face remains the same throughout the series. She is hard on the patrol officers but softer with the detectives. She most likely has most respect for them as she has worked with a couple. It can also be because they are higher up and she doesn't want to have bad blood with them. However this doesn't mean that she will be tough on them. She is the most fond with Lindsay and it doesn't go unnoticed. It's also shown that she likes Dawson as they will sometimes talk and give each other advice. Despite her hard attitude she still cares for her officers. She'll get worried if someone gets hurt on the line of duty. This was the case when Burgess gets shot through a door. She went to go visit her in the hospital . She tells Adam who was also visiting that when she got hurt no one was there when she woke up. Platt won't tell anyone but it really hurt her feelings. However, she does not use this to realize her arrogant and abrasive attitude needs a serious adjustment and continues to treat others like crap. She most likely has visited anyone officers that has gone through major surgery to make sure someone is there. She tells Adam that back when she was patrol officer there weren't a lot of women around. This meant that the men didn't respect her as much. This hinted that is one of the main reason she's tough. She wants the respect from everyone and that she won't take crap from anyone. Throughout the series several officers have passed away from on duty. Each time she has set up a fund for the family. She will not take small bills and will glare at the officers until they give bigger bills. Platt is also caring when it comes to kids even though she does not have any of her own. A different personality comes out when it comes to kids. She is much nicer, smiles, laughs, cracks jokes and gets to know them. While initially hostile to Nadia, who started to work as a receptionist for internal, this changed when Nadia was nice to Platt and gave her a card on her birthday being the only one who remembered. This warms Platt up because no one said anything. This shows that despite her toughness she still gets hurt, even if it just small things. Since that day Platt has been nice to Nadia treating her fair better then anyone who has worked there. She helps Nadia prepare to become a police officer before Nadia's death.

Notes and Trivia

  • Platt's badge number is 31116.
  • Her radio code is 2101.
  • She is known for her harsh yet caring behavior.
  • She is one of Hank's closest friends, due to their time in the academy.
  • She is a district prairie.
  • She has what is called "an iron fist here a velvet glove there".


Season 1
Stepping Stone Wrong Side of the Bars Chin Check Now Is Always Temporary Thirty Balloons
Conventions The Price We Pay Different Mistakes A Material Witness At Least It's Justice
Turn the Light Off 8:30 PM My Way The Docks A Beautiful Friendship
Season 2
Call It Macaroni Get My Cigarettes The Weigh Station Chicken, Dynamite, Chainsaw An Honest Woman
Prison Ball They'll Have to Go Through Me Assignment of the Year Called in Dead Shouldn't Have Been Alone
We Don't Work Together Anymore Disco Bob A Little Devil Complex Erin's Mom What Do You Do
What Puts You On That Ledge Say Her Real Name Get Back to Even The Three Gs The Number of Rats
There's My Girl Push The Pain Away Born Into Bad News
Season 3
Life is Fluid Natural Born Storyteller Actual Physical Violence Debts of the Past Climbing Into Bed
You Never Know Who's Who A Dead Kid, a Notebook and a Lot of Maybes Forget My Name Never Forget I Love You Now I'm God
Knocked The Family Right Out Looking Out For Stateville Hit Me The Song of Gregory Williams Yates A Night Owl
The Cases that Need to be Solved Forty-Caliber Bread Crumb Kasual with a K If We Were Normal In A Duffel Bag
Justice She's Got Us Start Digging
Season 4
The Silos Made a Wrong Turn All Cylinders Firing Big Friends, Big Enemies A War Zone
Some Friend 300,000 Likes A Shot Heard Around the World Don't Bury This Case Don't Read the News
You Wish Sanctuary I Remember Her Now Seven Indictments Favor, Affection, Malice or Ill-Will
Emotional Proximity Remember the Devil Little Bit of Light Last Minute Resistance Grasping for Salvation
Fagin Army of One Fork in the Road
Season 5
Reform The Thing About Heroes Promise Snitch Home
Fallen Care Under Fire Politics Monster Rabbit Hole
Confidential Captive Chasing Monsters Anthem Sisterhood
Profiles Breaking Point Ghosts Payback Saved
Allegiance Homecoming
Season 6
New Normal Bad Boys Endings Ride Along Fathers and Sons
True or False Trigger Black and Blue Descent Brotherhood
Trust Outrage Night in Chicago Ties That Bind Good Men
The Forgotten Pain Killer This City What Could Have Been Sacrifice
Confession Reckoning
Season 7
Doubt Assets Familia Infection, Part 3 Brother's Keeper
False Positive Informant No Regrets Absolution Mercy
43rd and Normal The Devil You Know I Was Here Center Mass Burden of Truth
Intimate Violence Before the Fall Lines Buried Secrets Silence of the Night
Season 8
Fighting Ghosts White Knuckle Tender Age Unforgiven In Your Care
Equal Justice Instinct Protect and Serve Impossible Dream The Radical Truth
Signs of Violence Due Process Trouble Dolls Safe The Right Thing
The Other Side
Season 9
Closure Rage The One Next to Me In the Dark Burnside
End of Watch Trust Me Fractures A Way Out Home Safe
Lies To Protect Still Water Blood Relation Gone
Closer Adrift New Guard Fool's Gold TBA