• 
  Robin Williams
• 
  Michael Richards

  Personaje diverse
• 
  Phyllis Diller

  Jonathan's Mother/Various Characters
• 
  Susan Anton

  Personaje diverse
• 
  Gil Christner

  Additional Improviser
• 
  Milton Berle

  Jonathan's Father/Various Characters
• 
  Rick Overton

  Additional Improviser
• 
  Martin Mull

  Personaje diverse

• 
  Lee Meriwether

  Personaje diverse

• 
  Jonathan Winters

  Himself/Others