• 
• Keir Dullea
• Dr. Jim Tennyson
  

• 
• Burl Ives
• Dr. Leonard Cook
  

• 
• Bob Berger
• Elias Hart
  

• 
• Bette Henritze
• Bea Schmidt
  

• 
• Lee Sanders
• Dora Ludlow
  

• 
• Peter Haig
• Dr. Jim Tennyson
  

• 
• Jen Jones
• Bea Schmidt
  Dora Ludlow
  

• 
• Seymour Penzner
• Dr. Leonard Cook
  Elias Hart
  

• 
• Ira Levin
• Writer
  Director
  

• 
• George C. Scott
• Director
  

• 
• David Hays
• Scenic Design
  Lighting Design
  

• 
• Noel Taylor
• Costume Design
  

• 
• Mortimer V. Halpern
• Production Stage Manager
  

• 
• Tom Leith
• Assistant Stage Manager
  

• 
• C. Edwin Knill
• General Manager
  

• 
• Helen Richards
• Company Manager
  

• 
• Harvey B. Sabinson
• General Press Representative
  

• 
• Lee Solters
• General Press Representative
  

• 
• Bob Ullman
• Press Representative
  

• 
• Ingram Ash
• Advertising
  

• 
• Arnold Saint-Subber
• Producer
  

• 
• Frank Prince
• Associate Producer
  

• 
• Manuel Seff
• Associate Producer