Overview

• Tracy Ifeachor, who starred as Dr. Heather Collins in the first season, will not return for Season 2.
• HBO Max announced that production on Season 2 commenced in mid-June, with the season slated to premiere in January 2026.
• Sepideh Moafi joins the main cast as a new attending physician in the Pittsburgh Trauma Medical Center’s ER.
• Charles Baker, Irene Choi, Lucas Iverson and Laëtitia Hollard have been cast in recurring roles.
• The series will continue its one-hour-per-episode, real-time format covering a 15-hour ER shift.