Lana, Peter, Lu, Dana, Nick and Bob

Physicians on staff included:

• Rosa Blasi as Dr. Luisa 'Lu' Delgado
• Philip Casnoff as Chief of Staff Dr. Robert Jackson
• Brennan Elliott as Dr. Nick Biancavilla
• Patricia Richardson as Dr. Andy Campbell
• Janine Turner as Dr. Dana Stowe
• Tamera Mowry as Dr. Kayla Thorton
• Matthew Yang King as Dr. Matt Linn
• Rick Schroder as Dr. Dylan West
• Richard Biggs as Dr. Milo Morton
• Terrence Flack as E.R. Dr. Terence
• Mickey Maxwell as Anethesiologist
• Stephen Gregory Foster as Dr. Blahnik
• Stephen Pisani as Dr. Steve
• Whoopi Goldberg as Dr. Lydia Emerson
• Gregory Harrison as Dr. Rand Kilner
• William Forward as Dr. Alan Mendel
• Howard S. Miller as Dr. Walter Thompson
• Ion Overman as Dr. Steph
• Michael Town as E.R. Doc Morrow
• Joe Howard as Dr. Doster
• Megan Follows as Dana's Doctor
• Matthew Abe as ER Doctor
• Ken Phillips as Dr. Phillips
• R.J. Adams as Dr. Mark Branson
• Gerald Emerick as ER Doctor
• Robert Foxworth as Dr. Ezra Stowe
• Noor Shic as ER Doctor
• Peter White as Dr. Soames
• Richard Topol as Attending
• Julie Dretzin as Dr. Jean
• Kavita Patil as Dr. Ann
• Daniel Graves as Dr. Klipstein
• Nick Spano as Dr. Schwartz
• Alexandra Fulton as Dr. Jody Ziegler
• Derrex Brady as Dr. Adrian Burwell

Other support personnel included:

• Jenifer Lewis as Receptionist Lana Hawkins
• Cullen Douglas as Lab Tech Abrams
• Orlando Ortega as Security Guard
• Joshua Cox as Midwife Peter Riggs, R.N.
• Kim Meredith as Nurse Jenny
• Sheila Kerrigan as Nurse Gwen
• Racheal Seymour as Nurse Rachel
• Dena Lang as ER Nurse Porter
• Randy Hale as ER Nurse Randy
• Susie Schelling as Nurse
• Mariah Shirley as Nurse
• Susan Leslie as Nurse Bonnie
• Sylvie Forrest as ER Nurse
• Erin Anderson as Nurse Erin
• Rhonda Collier as Nurse
• Mary Rings as E.R. Nurse
• Pamela Shaddock as Pedes Nurse
• Nick Halloran as Nurse
• Shi Ne Nielson as Nurse Selden
• Artie O'Daly as Nurse
• James Logan as Paramedic Smith
• John Griffin as Paramedic Newton
• Patrick Flanagan as Paramedic Burns
• Jon Hershfield as Paramedic Gordon
• David Spates as Paramedic Watts
• Josh Kuhn as EMT
• Yvonne Huff as Paramedic Ally