Main Characters Dr. Jack McNeil 95 main appearances Dr. Aaron Shutt 5 main appearances Dr. Phillip Watters 5 main appearances Dr. Billy Kronk 4 main appearances Dr. Diane Grad 4 main appearances Dr. Dennis Hancock 4 main appearances Dr. Kathryn "Kate" Austin 3 main appearances Dr. Danny Nyland 3 main appearances Dr. Keith Wilkes 3 main appearances Dr. Jeffrey Geiger 2 main appearances Camille Shutt 2 main appearances Alan Birch 1 main appearances Dr. John Sutton 1 main appearances Dr. Lisa Catera 1 main appearances Dr. Robert Yeats 1 main appearances Dr. Francesca Alberghetti 1 main appearances Dr. Gina Simon 1 main appearances Dr. Jeremy Hanlon 1 main appearances Stu Brickman 1 main appearances Dr. Arthur Thurmond Angela Giandamenicio
Recurring Guest Characters Dr. Gordon Mays 3 guest appearances Paramedic #2 3 guest appearances Paramedic 3 guest appearances Dr. Burt Peters 2 guest appearances Artie Lomax 2 guest appearances Emma Scull 2 guest appearances Dr. Edith Strauss 2 guest appearances Mr. Sylvia 1 guest appearances Jason Kerns 1 guest appearances Grandfather Wang 1 guest appearances Stuart Brickman 1 guest appearances Ron Greenfield 1 guest appearances FBI Agent Tom Strickler 1 guest appearances Dr. Joseph Little 1 guest appearances Jerry Peru 1 guest appearances Irene 1 guest appearances Marrienne Colton 1 guest appearances EMT 1 guest appearances EMT Nurse 1 guest appearances Paramedic #1 1 guest appearances ⇤ « 1 2 » ⇥