• 
  Sandor Stern

  regizor

• 
  Terry O'Quinn

  Dr. Linden
• 
  David Hewlett

  Leon Linden
• 
  David Gow

  Officer Wilson
• 
  Jonathan Banks

  PIN
• 
  Jacob Tierney

  Leon, age 7
• 
  Bruce Ramsay

  Teenager
• 
  Cynthia Preston

  Ursula Linden

• 
  Joanna Noyes

  Mrs. Henry
• 
  John Pyper-Ferguson

  Stan Fraker
• 
  Michelle Anderson

  Ursula - Age 5
• 
  Joan Austen

  Nurse Spalding
• 
  Steven Bednarski

  Leon - Age 13
• 
  Patricia Collins

  Aunt Dorothy
• 
  Terrence Labrosse

  Dr. Bell

• 
  Bronwen Mantel

  Mrs. Linden
• 
  Katie Shingler

  Ursula - Age 11
• 
  Jamie Stern

  Eddie Morris (as James Stern)
• 
  Helene Udy

  Marcia Bateman

• 
  François Séguin

  art director
• 
  Guy Dufaux

  imagine
• 
  Peter Manning Robinson

  departament sunet
• 
  Jim Begg

  producător
• 
  Pierre David

  producător
• 
  David Parker

  sound department
• 
  François Séguin

  special effects
• 
  Andrew Neiderman

  scriitor
• 
  Sandor Stern

  scriitor