Threshold

Celebrated heart surgeon Thomas Vrain supports the research of an offbeat scientist who has invented an artificial heart. Against the advice of the Ethics Committee, Dr. Vrain decides to perform the first artificial heart transplant.

• 
  Richard Pearce

• 
  Donald Sutherland
  Dr. Thomas Vrain
• 
  John Marley
  Edgar Fine
• 
  Sharon Acker
  Tilla Vrain
• 
  Mare Winningham
  Carol Severance
• 
  Jeff Goldblum
  Dr. Aldo Gehring
• 
  Michael Lerner
  Henry De Vici
• 
  Richard Blackburn
  Dr. Cutter
• 
  Michael C. Gwynne
  Jay Wingate
• 
  Robert Joy
  David Art
• 
  Allan F. Nicholls
  Dr. Basil Rents
• 
  Kate Trotter
  Mrs. Anderson
• 
  Lally Cadeau
  Anita, Vrain's Secretary
• 
  Stuart Gillard
  Dick Getts
• 
  Barbara Gordon
  Wanda, Vrain's Scrub Nurse
• 
  Samantha Langevin
  Mrs. Clure
• 
  Jessica Steen
  Tracy Vrain
• 
  Casey Stevens
  Larry Hammond