• 
  Gregory Abels

   Michael Hathaway (6 episodes, 1973)
• 
  Mike Bersell

   Peter Jardin (2 episodes, 1973)
• 
  Clarice Blackburn

   Amy Snowden (2 episodes, 1973)
• 
  David Cryer

   Dr. Hugh Jessup (3 episodes, 1973)
• 
  Alice Drummond

   Loretta Jardin (3 episodes, 1973)
• 
  Lisa Blake Richards

   Vicky Lucas (4 episodes, 1973)
• 
  Mike Hammett

   Matthew Arnold (7 episodes, 1973)
• 
  Ron Harper

   Steve Prescott (4 episodes, 1973)

• 
  Delphi Harrington

   Christine Cameron (4 episodes, 1973)
• 
  Peter MacLean

   John Rainey (6 episodes, 1973)
• 
  Joseph Mascolo

  Ed Lucas
• 
  James Mitchell

   Julian Hathaway (6 episodes, 1973)
• 
  Priscilla Pointer

   Adrienne Rainey (3 episodes, 1973)
• 
  William Post Jr.

   Dr. Joe Prescott (4 episodes, 1973)
• 
  John Scanlon

   Tom O'Neill (2 episodes, 1973)

• 
  Tracy Brooks Swope

   Liz Hathaway (6 episodes, 1973)
• 
  Diana Van der Vlis

   Kate Prescott (4 episodes, 1973)
• 
  Diana Walker

   Mary Hathaway (4 episodes, 1973)