Two new characters are joiningChicago Med’s already-large cast for season 10. The medical drama, which has been part of theOne Chicagouniversefor a decade, has had many cast changes over its run, especially in the last few years. During the series' early years, the focus was on residents Will Halstead and Connor Rhodes, neither of whom is on the series anymore, and as the series has aged, new residents and interns have been brought in as well as new senior doctors.
The series had another cast shake-up when Dominic Rains' Crockett Marcel was written out prior to the beginning of season 10.Marcel’s tragic exit fromChicago Medoccurred after the surgeon lost two patients because he had to cancel a badly-needed liver transplant for a young boy after the child developed an infection. While his absence will leave a hole in the cast,Chicago Med’s introduction of new characters will help make up the difference.The new characters will work alongside veteran doctors and nurseswho have been part of the series for a long time.
Every Character And Actor In Chicago Med Season 10
S Epatha Merkerson as Sharon Goodwin
July 10, 2025
Actor:S Epatha Merkerson was born in Michigan andbroke big inLaw & Order, where she played no-nonsense head of the Homicide Unit Anita Van Burenfor almost 20 years and lent her voice talent to reprise her role in two video games based on the series. Merkerson was primarily known as a Broadway actress beforeLaw & Order;afterward, she had many guest appearances on critically acclaimed shows such asThe Good Wifebefore landing the part of Sharon Goodwin onChicago Medin 2015.
Every One Chicago Character & Actor Not Returning In 2024
A handful of important Chicago Fire, Chicago PD, and Chicago Med actors unfortunately won’t reprise their roles in the 2024–2025 TV season.
Sharon Goodwin
Chicago Med
Character:Med’s Goodwin is similar to Van Buren in that she is both tough and empathetic. She is a retired nurse who keeps her license active in case she needs to help out in an emergency, but her main job is to deal with personnel and ethical issues in the hospital, often making decisions when there are conflicts between doctors about treatment plans or who gets supplies such as blood for transfusions. Like Merkerson,Goodwin has diabetes, and the actress hopes this aspect of her character will help raise awareness about the disease,especially for Black women.
Oliver Platt As Daniel Charles
July 24, 2025
Actor:Oliver Platt was born in Windsor, Ontario andbroke big in 2001’sThe West Wing.Prior to his breakout role, he had been known as a character actor who had small parts in many movies, most notably 1999’sThe Bicentennial Man.He also was a regular toward the end ofThe Good Wife, in which he played a conservative friend of Diane’s husband who enjoyed sparring with Diane because of their opposing political views. He currently stars in bothChicago Medand Hulu’sThe Bear.He has also appeared in severalOne Chicagocrossovers.
Uncle Jimmy
The Bear
Character:Platt’s Dr. Charles is the chief of psychiatry at Gaffney. He is often called in on cases where the patient is exhibiting strange behaviors or beliefs as well as helping patients come to terms with diseases and become willing to accept treatment that scares them. Charles also often deals with staff skepticism about psychiatry, especially Dr. Archer, and has faced up to his own poor choices in treating Dr. Ripley when Ripley was a troubled teenager.
Marlynne Barette As Maggie Lockwood
August 13, 2025
Actor:Marlyne Barrett was born in Brooklyn, NY andbroke big inChicago Med,where she has played charge nurse Maggie Lockwood since the series began. She also was inLaw & Orderon several occasions, often playing a defense attorney, and has appeared inThe Good Wifein an episode that coincidentally featured Tony Goldwyn, who currently plays District Attorney Nicholas Baxter inLaw & Order.
Maggie Lockwood
Character:Maggie’s duties as a charge nurse include telling doctors when patients come into the ED and directing them to the proper rooms, supervising other nurses, and assisting in patient care as needed. She has had more than her fair share of personal drama, including meeting her now-former husband when they both were receiving chemo, losing a foster son to his biological relatives, and attempting to re-establish a relationship with the daughter she gave up for adoption when she became pregnant as a teenager.
Jessy Schram As Hannah Asher
June 22, 2025
Actor:Jessy Schram was born in Skokie, IL,and broke big inVeronica Marsin 2006, where she played Hannah Griffithfor four episodes. She also received critical acclaim for her role inMad Menas Bonnie Whiteside. More recently, she appeared inOnce Upon A Time,followed byNashvillefor four episodes. She has been withChicago Medsince 2020 and originally was a potential love interest for Will Halstead.
Hannah Asher
Character:Asher is in recovery for opioid addiction. Will met her while moonlighting at a safe haven for IV drug users, but she resisted his help in getting clean, and he later learned she was employed by the same hospital he was. Asher left to get clean and is one of the fewChicago Medcharacters to returnafter leaving the series.Asher works as an OBGYN and has tried to help Archer support his son Sean, who is a newly sober addictwho just got out of prison.
Steven Weber As ED Chief Dean Archer
June 24, 2025
Actor:Steven Weber was born in Queens, New York andbroke big in the soap operaAs The World Turns, playing the role of Kevin Gibsonfor 17 episodes in 1984. Since then, Weber has been in a wide variety of series.Some of Steven Weber’s best rolesinclude guest roles onParenthood, Mom,andHot in Clevelandas well as a longer-term role inMurder In The First.Weber was a close personal friend of John Ritter and asked for the Ritter family’s foundation to be included in an episode ofChicago Medthat addressed aortic dissension, the rare heart disease that took Ritter’s life.
Dean Archer
Character:Archer was introduced as an interim ED chief when Ethan Choi (Brian Teo) was too ill to perform his duties. Archer and Choi knew each other from their Navy days, but Archer caused more chaos than good in his early days at the hospital, as he was not above bending the rules to impose his decisions on patients who did not consent to treatment. In more recent years, his friendship and possible romance with Hannah Asher has been a central part of his story along with his attempt to reconcile with his long-estranged son, Sean, who is a recovering addict.
Luke Mitchell as Mitch Ripley
July 16, 2025
Actor:Luke Mitchell was born in Melbourne, Australia andbroke big inAgents of S.H.I.E.L.D.He is one of manyHollywood actors to get their start onNeighbours,an iconic Australian soap opera that ran for 37 years on broadcast TV and was picked up by Amazon Freevee after its cancellation. Mitchell also appeared onBlindspotandBig Skybefore landing the role of Ripley inChicago Med.
Mitch Ripley
Character:Ripley joined theChicago Medcast in season 9. He is a former patient of Dr. Charles' who felt Charles' care was neglectful when he was a troubled teenager who received therapy while in juvenile detention. Ripley and Charles have had a contentious relationship, and Ripley also has an awkward friendship with one of his childhood friends, Scully, who he used to get in trouble with. At the end of season 9, troublemaker Pawel accused Ripley of beating him up, which will lead to problems for Ripley in season 10.
Sarah Ramos as Caitlin Lenox
June 24, 2025
Actor:Sarah Ramos was born in Los Angeles, California andbroke big inParenthood,a family drama in which she played the sister of an autistic child.Ramos' character inParenthoodoften felt lost in the shuffle because of her family’s focus on her brother. Ramos also played Casey Jones inCity Girland was featured inMidnight, TexasandWinning Time: The Rise of The Laker Dynasty. She most recently appeared as Jessica in Hulu’sThe Bear.
Caitlin Lenox
Character:Caitlin Lenox is one of two new characters inChicago Medseason 10. She will butt heads with Archer, who sees her as too young to know anything about medicine or how things should be done in an emergency department and will have unorthodox ideas about medicine that will irritate him.Her role is supposed to shake up things at Gaffney, which may put her in conflict with Sharon as well as Archer.
Darren Barnet as John Frost
August 08, 2025
Actor:Darren Barnet was born in Los Angeles, California andbroke big in 2023’sAnyone But You.Barnet has been in several movies and TV shows before and since, notablyLove Hard,Agents of S.H.I.E.L.D,Never Have I Ever, andThis Is Us,where he had a small role as a young Jack Pearson in a 2024 flashback.
Anyone But You
John Frost
Character:John Frost is an enigmatic, arrogant, and charismatic resident who transfers to Gaffneywhen another hospital closes. He works in pediatrics and cares deeply about his patients, but also has secrets from his past. He will have his first scenes with Maggie and will be working with a young girl during a mass casualty event in the season premiere.
Chicago Med Supporting Cast And Characters
There Are Several Recurring Doctors
There are several doctors who appear on a recurring basis, including two residents and one doctor. These characters only appear in episodes where the storyline calls for it, but can be expected to make several appearances over the course of the season. They often butt heads with the main characters over treatment options.
Devin Kawaoka as Resident Dr. Kai Tanaka-Reed -Kawaoka was originally trained an Olympic downhill skier and has appeared onCriminal Minds, Lucifer,andShrinking.
Lilah Richcreek Estrada as Psychiatry Resident Dr. Nellie Cuevas -Chicago Medis her biggest role to date, though she has guest starred onThe Wonder Years.
Brennan Brown as Chief of Neurosurgery Dr. Sam Abrams -In addition to appearing in 43 episodes ofChicago Med, Brown starred inThe Man In The High Castle.
Cast
Chicago Med is a medical drama series that explores the high-stakes environment of a bustling Chicago hospital. Set against the backdrop of chaotic emergency room scenarios, the series follows a team of dedicated doctors and nurses as they confront challenging cases inspired by real-world issues, while navigating complex relationships.
