• 
• Walter Abel
• Acis
  

• 
• Martha-Bryan Allen
• The Envoy's Daughter
  The Newly-Born
  

• 
• Clelia Benjamin
• Ecrasia
  

• 
• Albert Bruning
• Franklyn Barnabas
  The Elderly Gentleman
  

• 
• George Gaul
• Adam
  Napoleon
  The Ghost of Adam
  The Male Figure
  

• 
• Stanley Howlett
• Arjillax
  Haslam
  The Archbishop of York
  

• 
• Moffat Johnston
• Barnabas, the Accountant General
  Conrad Barnabas
  The He-Ancient
  

• 
• A. P. Kaye
• Burge-Lubin, President of the British Isles
  Joyce-Burge
  Pygmalion
  The Envoy
  

• 
• Claude King
• Confucius, the Chief Secretary
  Lubin
  Martellus
  Zozim
  

• 
• Dennis King
• Cain
  Strephon
  The Ghost of Cain
  

• 
• Shirley King
• The Envoy's Wife
  

• 
• Ernita Lascelles
• Eve
  The Female Figure
  The Ghost of Eve
  The Woman
  

• 
• Mary Lawton
• Lilith
  The Minister of Health
  

• 
• Eleanor Woodruff
• A Maiden
  Savvy
  Zoo
  

• 
• Margaret Wycherly
• Mrs. Lutestring, the Domestic Minister
  The Oracle
  The Parlor Maid
  The She-Ancient
  The Voice of The Serpent
  

• 
• George Bernard Shaw
• Writer
  

• 
• Alice Lewisohn
• Staged Part II (The Gospel of the Brothers Barnabas)
  

• 
• Agnes Morgan
• Staged Part II (The Gospel of the Brothers Barnabas)
  

• 
• Frank Reicher
• Staged Part IV (The Tragedy of an Elderly Gentleman)
  

• 
• Philip Moeller
• Staged Part V (As Far as Thought Can Reach)
  

• 
• The Theatre Guild
• Producer