Characters played by Ken Wharton
Hospital Administrator
Characters played by Mark Feuerstein
Dr. Jonathan Seger
Characters played by Armando Riesco
Dr. Tom Flores
Characters played by Stanley Tucci
Dr. Douglas Hanson
Characters played by Indira Varma
Dr. Adrianne Holland
Characters played by Zabryna Guevara
Melania Ortiz
Characters played by Addison Timlin
Charlotte Hanson
Characters played by Cynthia Nixon
Dr. Karin Hanson
Characters played by Malachi Weir
Eddie
Characters played by Cyrus Farmer
Isaiah
Characters played by Jennifer Ferrin
Penny Marx
Characters played by Griffin Dunne
Dr. Jerry Cole
Characters played by Petrea Burchard
O.R. Nurse
Characters played by Molly Bryant
Nurse Joanne
Characters played by Eleanor Seigler
Nurse Melissa
Characters played by Max Arciniega
Jose
Characters played by Liz Burnette
Anesthesiologist
Characters played by Ashlie Atkinson
Nurse Rhonda
Rhonda
Characters played by Jordan Carlos
Intern
Characters played by January LaVoy
MRI Tech Eileen
Characters played by Jerzy Gwiazdowski
Male Student
Characters played by Linda Kuriloff
Kathleen
Nurse Kathleen
Characters played by Dylan McDermott
Dr. Douglas Hanson
Characters played by Reiko Aylesworth
Dr. Adrienne Holland
Characters played by Jessica Hecht
Rebecca Ellis
Characters played by Michael O'Neill
James Wills
Characters played by Juliette Goglia
Erica Linden
Characters played by Erin Dilly
Kate Larsen
Characters played by Joaquin Perez-Campbell
Clay Conlin
Characters played by Benjamin Walker
Nick Ross
Characters played by Julia Campbell
Roberta Mack
Characters played by Toks Olagundoye
Mary
Characters played by Isabel Keating
Rosemary Donovan
Characters played by Joshua Funk
O'Malley
Characters played by Nick Offerman
Dr. Coffey
Characters played by Ned Eisenberg
Brad Ellis
Characters played by Erin Fritch
Cindy Hargrove
Characters played by Adam Stein
Dennis
Characters played by Kate Jennings Grant
Kristen Lund
Characters played by Leslie Rodriguez Kritzer
Donna
Characters played by Keira Naughton
Sarah Bates
Characters played by Cristin Milioti
Megan Rafferty
Characters played by James McCaffrey
Eric Linden
Characters played by Steve Braun
Otis Wills
Characters played by Tamara Taylor
Della
Characters played by Karl Bury
Matt Ketchum
Characters played by Maggie Siff
Lisa Ketchum
Characters played by Celia Weston
Tilly Bates
Characters played by Deena Dill
Beth Cole
Characters played by Madeline Zima
Cassie Mack
Characters played by Gloria Garayua
Lucy Canet
Characters played by Wrenn Schmidt
Female Student
Characters played by Justin Bruening
Personal Trainer
Characters played by Frances de la Tour
Dr. Haliday
Characters played by Jack Gilpin
Dr. Wardell
Characters played by Marc John Jefferies
Adam
Characters played by Louis Ozawa
ICU Nurse
Characters played by Holley Fain
Rachel
Characters played by Anna George
Dr. Helen Clark
Characters played by John Behlmann
James Parks
Characters played by Claire Lautier
Guest Lead
Characters played by Mark Kenneth Smaltz
Dr. Philip Walker
Characters played by Amy Hohn
Dr. Pamela Bellflower
Characters played by Sam Kalidi
Khaled
Characters played by Tyson Sullivan
Sterling
Characters played by David Lawrence Brown
EMT #1
Characters played by Jessica Stone
Vicky
Characters played by Audra Blaser
Deborah Rivers
Characters played by Starla Benford
Ultrasound Nurse
Characters played by Me'lisa Sellers
EMT
Characters played by Don Stephenson
Dr. Lex Nylan
Characters played by Mark Hammer
Old Man
Characters played by Bashir Gavriel
Scrub Nurse
Characters played by Sidné Anderson
Lois
Characters played by Jeremy Redleaf
Gary
Characters played by Ron Nakahara
Dr. Ryan Kim
Characters played by David Brown
EMT
Characters played by Bob Colletti
Creepy Guy
Characters played by Jay Charan
Iraqi Insurgent
Characters played by Joel Veach
McFadden
Characters played by Joshua Levine
Markus
Characters played by Rayme Cornell
Circulating Nurse
Characters played by Sergia Louise Anderson
Young girl
Characters played by Jenn Miller Cribbs
Nurse
Characters played by Carlos Thomas
Street Drummer #2
Characters played by Sarah Stockton
Amy
Surgical Intern
Characters played by Jihane Tamri
Medical student
Characters played by Marivaldo Dos Santos
Street Drummer #1
Characters played by Lorraine Toussaint
Della
Characters played by Caitlyn Folley
Jane Doe
Characters played by Mary Lou
Charlotte Hanson
Characters played by Emily Podleski
Jessie
Characters played by Derrick L. McMillon
Police Officer
Characters played by Sibyl Santiago
Nurse
Characters played by Kimberly Leemans
Nurse Kimberly
Characters played by Thelma Gutiérrez
Nurse
Characters played by Dennis Jay Funny
Street Musician
Characters played by Jeshua Vargas
Officer
Characters played by Dianne Curwick
Nurse Marie
Characters played by Gina Hernandez
Nurse
Characters played by Catrina Villani
School Girl