full cast

Cast list is way too long so I've listed only those that have been on 4 or more episodes.

Dr. Jordan Alexander Jill Flint
Dr. Drew Alister Brendan Fehr
Nina Alvarez Briana Marin
Amira Rana Roy
Nurse Bardocz Catharine Pilafas
Dr. Krista Bell-Hart Jeananne Goossen
Brianna Kyla Kenedy
Annie Callahan Sarah Jane Morris
Dr. TC Callahan Eoin Macken
Dr. Joey Chavez Adam Rodriguez
Dr. Scott Clemmens Scott Wolf
Dr. Julian Cummings James McDaniel
Dr. Paul Cummings Robert Bailey Jr.
Dr. Landry De La Cruz Daniella Alonso
Cain Diaz Mark Consuelos
Nurse Diaz Alma Sisneros
Dwayne Marc Comstock
Kenny Fournette JR Lemon
Gwen Gaskin Merle Dandridge
Dr. Syd Jennings Jennifer Beals
Nurse Joanna Melanie Johnson
Rick Lincoln Luke Macfarlane
Nick Derek Webster
Michael Ragosa Freddy Rodriguez
Nurse Ramos Esodie Geiger
Mac Reily Mac Brandt
Riley Jillian Estell
Dr. Shannon Rivera Tanaya Beatty
Sam Michael Cassidy
Jessica Sanders AnnaLynne McCord
Sara Trina E. Siopy
Dr. Topher Zia Ken Leung