• 
• Florence Eldridge
• Mary Cavan Tyrone
  

• 
• Fredric March
• James Tyrone
  

• 
• Bradford Dillman
• Edmund Tyrone
  

Replacement

• 
• Jason Robards, Jr.
• James Tyrone, Jr.
  

• 
• Katherine Ross
• Cathleen
  

• 
• Albert Morgenstern
• Edmund Tyrone
  James Tyrone, Jr.
  

Replacement

• 
• Ruth Nelson
• Cathleen
  Mary Cavan Tyrone
  

• 
• Ford Rainey
• James Tyrone
  

• 
• Eugene O'Neill
• Writer
  

• 
• José Quintero
• Director
  Producer
  

• 
• David Hays
• Scenic Design
  

• 
• Motley
• Costume Design
  

• 
• Tharon Musser
• Lighting Design
  

• 
• Elliot Martin
• Production Stage Manager
  

• 
• George Petrarca
• Stage Manager
  

• 
• Thomas Fitzgerald
• Soundman
  

• 
• Irving Cooper
• General Manager
  

• 
• Arthur Cantor
• Press Representative
  

• 
• Louis Sheaffer
• Press Representative
  

• 
• Lawrence Weiner
• Advertising Representative
  

• 
• Leigh Connell
• Producer
  

• 
• Theodore Mann
• Producer