Chicago Med Season 12 Cast Guide: See Who’s Returning to NBC's Hit Medical Drama

Steven Weber is slated to return for Season 12. Weber joined the show in Season 6 as Dr. Dean Archer in recurring capacity before being promoted to a series regular in Season 7. NBC teases, “Weber's Dean Archer is having an exhilarating period of change on Chicago Med as he navigates late-in-life fatherhood after welcoming a daughter with his Gaffney colleague, Hannah Asher, last season. Fans can't wait to see how parenthood is going in Season 12 of Med, especially after Archer confessed his feelings to Hannah for the first time.”

As is apparent from the previous slide, Jessy Schram is also returning to reprise her role as Dr. Hannah Asher. Schram made her debut in Season 5 as a recurring character and later became a series regular in Season 7. She “never fails to tug at the heartstrings,” and fans can't wait to check in on “Med fan favorite Dr. Hannah Asher as she navigates motherhood and shifting career dynamics now that she's a single mother.”

Luke Mitchell will once again appear as Dr. Mitch Ripley in the upcoming season, having joined Chicago Med in Season 9. NBC hints at what’s ahead for him, writing, “Season 11 was an emotional rollercoaster for Ripley after he navigated heartbreak and a shocking workplace romance with Dr. Caitlin Lenox,” and in Season 12, “he's set to deliver the same dynamite care he always has.”

Sarah Ramos became part of the Chicago Med cast in Season 10, and she’s not going anywhere. Ramos is confirmed to step back into the role of Dr. Caitlin Lenox in Season 12. According to NBC, “As head of the Gaffney Emergency Department, Dr. Caitlin Lenox has little time to waste. And after the recent discovery of a terminal diagnosis, she's been burning the candle at both ends. Aside from her repressed medical turmoil, Ramos explored explosive chemistry with Ripley in Season 11, ultimately confessing her love for him by the season's end.”

Darren Barnet’s character, Dr. John Frost, will be back for Season 12 as well. Barnet joined the medical drama alongside Sarah Ramos in Season 10. NBC’s preview reveals that “Barnet's Dr. John Frost is One Chicago's latest bachelor. While fans have adored watching him tackle romance at Gaffney and beyond, he remains single. After navigating personal turmoil with his parents, Frost will be grieving going into the upcoming season of Med.”

S. Epatha Merkerson is an original main cast member who plays Sharon Goodwin. She signed on to Chicago Med in its debut season and will once again step back into the role. NBC noted that, “Gaffney would be a pile of rubble if it weren't for Sharon Goodwin, the hospital's longtime director and biggest champion. A Med O.G. and cherished pillar of the hospital's success, Goodwin never fails to steal the show anytime she's on screen, with dozens of characters flocking to her for help over the years. But as Goodwin's job hangs in the balance, viewers are desperate to see how she gets out of this one.”

Oliver Platt joined Chicago Med in Season 1 as Dr. Daniel Charles, though his character was first introduced during Season 3 of Chicago Fire as part of a backdoor pilot to set up the spinoff. Platt is among the returning stars for the forthcoming season. The network shared that, “Every Emergency Department needs a trusted psychiatrist on deck, and Platt's Dr. Daniel Charles has been Gaffney's steadying force since Day 1. Dr. Charles is empathetic, witty, and gifted at sensing the core of a problem, helping with countless medical cases over the years. Despite some health hurdles in Season 11 of Med, fans can't wait to see him hit the ground running in Season 12.”