In a joyful announcement that has sent waves of excitement through the One Chicago community, Nick Gehlfuss — best known as Dr. Will Halstead on Chicago Med — has revealed he is becoming a father for the first time.
The 40-year-old actor shared the news on Instagram late Wednesday night with a simple yet touching post: a black-and-white ultrasound photo accompanied by the caption “Our greatest adventure yet ❤️ Baby Halstead arriving Summer 2026.” Within minutes, the post exploded with likes and heartfelt comments from co-stars, fans, and fellow One Chicago alumni.
Gehlfuss and his wife, Liliana “Lily” Gehlfuss, have been married since 2020 and have kept their personal life remarkably private. The couple first met in 2018, and sources close to them say they had been trying to start a family for some time. This pregnancy marks a beautiful new chapter after years of balancing intense filming schedules with their desire to grow their family.
The timing of the announcement feels especially sweet coming just weeks after the emotional March 4, 2026 One Chicago crossover “The Reckoning,” where Gehlfuss reprised his role as Will Halstead in a powerful guest appearance alongside his on-screen brother Jesse Lee Soffer. Fans were already riding a nostalgia high when the baby news dropped, turning the comment sections into a celebration of both the show and real-life milestones.
Co-stars quickly flooded the post with love. Torrey DeVitto (who played Dr. Natalie Manning) wrote, “Uncle Will is going to be the best dad! Congrats you two ❤️” while S. Epatha Merkerson (Sharon Goodwin) simply commented with a string of hearts and baby emojis. Even Jason Beghe from Chicago P.D. chimed in: “Another Halstead in the world? The universe just got a little brighter.”
For Chicago Med fans, the news carries extra emotional weight. Will Halstead has always been portrayed as the passionate, sometimes impulsive doctor with a huge heart — traits that many believe will translate beautifully into fatherhood. Some are already jokingly speculating whether the baby will grow up to become a future doctor at Gaffney Chicago Medical Center.
Gehlfuss has been a steady presence on Chicago Med since the series premiered in 2015, though his role has shifted in recent seasons from series regular to recurring guest star after he chose to step back for more family time and other creative pursuits. His reduced screen time earlier this year had already sparked rumors he might be preparing for major life changes.
This pregnancy announcement feels like the perfect full-circle moment. While Will Halstead’s storylines on the show often revolved around love, loss, and second chances, Gehlfuss is now stepping into his own real-life version of those themes.
As the countdown to Summer 2026 begins, fans are already sending waves of love and support. Many have commented that this news is exactly the kind of positive, uplifting story the One Chicago family — and the world — needed right now.
Congratulations to Nick and Lily Gehlfuss on this beautiful new beginning. Baby Halstead is already surrounded by an enormous TV family ready to spoil them rotten.