Overview

• Halstead’s return begins in Wednesday’s episode after a trip to watch the Bears with Owen leads him back to the hospital.
• Nick Gehlfuss says Will has struggled to bond with stepson Owen, which is straining his otherwise happy relationship with Natalie as they live together.
• Promo footage shows a dramatic ER entrance with Halstead carrying someone as his tunnel‑focused habits resurface.
• Gehlfuss teases immediate friction and a competitive dynamic with newcomer Dr. John Frost.
• The guest stint spans multiple episodes following Halstead’s 2023 exit, arriving during Season 11 under showrunner Allen MacDonald.