Remind me of the main characters

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Main Cast & Their Roles

1. Dr. Michael “Robby” Robinavitch (Noah Wyle) The senior attending physician leading the show. He anchors the emergency department, taking charge during the 15-hour shift.

2. Dr. Frank Langdon (Patrick Ball) A senior resident, experienced and tasked with both guiding less senior colleagues and handling difficult cases.

3. Dr. Cassie McKay (Fiona Dourif) A second-, then third-year resident with a young son, navigating the demands of raising a child while coping with the chaos of the ER.

4. Dr. Melissa “Mel” King (Taylor Dearden) A neurodivergent second-, later third-year resident. She also has an autistic twin sister, which influences how she balances pressure under stress.

5. Dr. Trinity Santos (Isa Briones) Starts as a cocky intern, progressing to second-year resident; ambitious and learning fast in a high-stakes environment.

6. Dr. Dennis Whitaker (Gerran Howell) Gentle, somewhat naïve fourth-year medical student, becoming more involved in patient care.

7. Dr. Victoria Javadi (Shabana Azeez) A third-, then fourth-year medical student whose parents are also in medicine—adds familial pressure and expectations.

8. Dana Evans (Katherine LaNasa) The charge nurse on day shift—no-nonsense, in control, keeping everything and everyone moving forward.

9. Dr. Samira Mohan (Supriya Ganesh) A third-year resident (later fourth-year). She’s trying to find her rhythm between precision and speed under pressure.

10. Dr. Heather Collins (Tracy Ifeachor) — Season 1 Senior resident who’s secretly pregnant. She shares a past with Robby, adding personal tension to professional strains.

11. Dr. Baran Al-Hashimi (Sepideh Moafi) — Starting Season 2 New attending physician stepping in as Robby’s interim replacement when he takes a sabbatical. Brings fresh dynamics to the leadership.

12. Dr. Parker Ellis (Ayesha Harris) — Season 3 regular (recurring in earlier seasons) Night shift senior resident. Joins the core group more fully in Season 3.

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If you want, I can also pull together summaries of their character arcs or notable moments so far.