• 
  Arthur Hiller

  regizor

• 
  Paddy Chayefsky

  scenarist

• 
  Dennis Dugan

  E.R. Doctor
• 
  Stockard Channing

  E.R. Nurse
• 
  George C. Scott

  Dr. Herbert Bock
• 
  Diana Rigg

  Barbara Drummond
• 
  Barnard Hughes

  Edmund Drummond
• 
  Janet Sarno

  Nurse Rivers

• 
  Richard Dysart

  Dr. Welbeck
• 
  Lenny Baker

  Dr. Schaefer
• 
  Christopher Guest

  Resident
• 
  Nancy Marchand

  Mrs. Christie
• 
  Katherine Helmond

  Marilyn Mead
• 
  Tom Spratley

  Mitgang
• 
  Roberts Blossom

  Guernsey

• 
  Nat Grant

  Black Panther
• 
  Julie Garfield

  Nurse Perez
• 
  Robert Walden

  Dr. Brubaker
• 
  Paddy Chayefsky

  Opening Narrator
• 
  Jacqueline Brookes

  Dr. Immelman
• 
  Shawn McAllister

  Medical Intern
• 
  Richard Hamilton

  Dr. Ronald Casey
• 
  David Hooks

  Dr. Einhorn
• 
  Frances Sternhagen

  Mrs. Cushing
• 
  Alex Colon

  Young Lord
• 
  Jordan Charney

  Hitchcock
• 
  Andrew Duncan

  William Mead
• 
  Sab Shimono