• 
• Luther Adler
• Dr. Gordon
  

• 
• Margaret Barker
• Laura Hudson
  

• 
• Alan Baxter
• Dr. Crawford
  

• 
• Phoebe Brand
• Barbara Dennin
  

• 
• J. Edward Bromberg
• Dr. Hochberg
  

• 
• Grover Burgess
• Dr. McCabe
  

• 
• Morris Carnovsky
• Dr. Levine
  

• 
• William Challee
• Dr. Michaelson
  

• 
• Russell Collins
• Dr. Cunningham
  

• 
• Walter Coy
• Dr. Bradley
  

• 
• Mary Virginia Farmer
• Mrs. D'Andrea
  

• 
• Robert Harper
• Mr. Drummond
  

• 
• Elena Karam
• Second Nurse
  

• 
• Elia Kazan
• Orderly
  

• 
• Alexander Kirkland
• Dr. Ferguson
  

• 
• Gerrit Kraber
• James Mooney
  

• 
• Lewis Leverett
• Mr. Spencer
  

• 
• Mab Maynard
• Dorothy Smith
  

• 
• Sanford Meisner
• Dr. Wren
  Mr. Smith
  

• 
• Paula Miller
• First Nurse
  

• 
• Ruth Nelson
• Mrs. Smith
  

• 
• Clifford Odets
• Mr. Houghton
  

• 
• Dorothy Patten
• Nurse Mary Ryan
  

• 
• Herbert Ratner
• Dr. Vitale
  

• 
• Art Smith
• Mr. Hudson
  

• 
• Eunice Stoddard
• Nurse Jamison
  

• 
• Lee Strasberg
• Director
  

• 
• Mordecai Gorelik
• Scenic Design
  

• 
• Arnold L. Schauer, Jr.
• Assistant Production Manager
  

• 
• Elia Kazan
• Stage Manager
  

• 
• Gerrit Kraber
• Assistant Stage Manager
  

• 
• Robert Harper
• Assistant Stage Manager
  

• 
• Philip Adler
• Company Manager
  

• 
• The Group Theatre Company
• Producer
  

• 
• Sidney Harmon
• Producer
  

• 
• James R. Ullman
• Producer