Overview

• Multiple outlets confirm Gehlfuss will reprise Dr. Will Halstead in a guest-starring role during the new season.
• NBC has set the Season 11 premiere for Wednesday, Oct. 1 at 8/7c.
• Producers have not announced how many episodes he will appear in or the narrative reason for his visit.
• This will be Gehlfuss’s first appearance on the series since his 2023 exit after eight seasons.
• The return fits the show’s broader strategy of checking in with legacy characters under its current leadership.