• 
  Mel Gibson

  Peter Lang
• 
  Peter Adams

  Det. Jeff Johnson
• 
  Lisa Aldenhoven

   Kathy Curtis (2 episodes, 1977)
• 
  Tony Bonner

  Sr. Det. Don McKenna
• 
  Mary Charleston

   Maureen Craig (2 episodes, 1977)
• 
  Paula Duncan

  Det. Danni Francis
• 
  Tommy Dysart

   Dimonicus (2 episodes, 1977)
• 
  Jeremy Kewley

  Brett Markham

• 
  Joanna Lockwood

  Valerie Johnson
• 
  George Mallaby

   Det. Sgt. Glen Taylor (5 episodes, 1977)
• 
  Andrew McKaige

  Gary Foster
• 
  Joanne Moore

   Gayle Taylor (4 episodes, 1977)
• 
  Terry Norris

  Sr. Sgt. Eric O'Reilly
• 
  Louise Pajo

  Carol McKenna
• 
  Gregory Ross

  Const. Tony Benjamin

• 
  Walter Sullivan

   Edmond Eliot-Smith (2 episodes, 1977)
• 
  Peter Summer

  Detective Tom Foster
• 
  Rowena Wallace

   Pamela Taylor (5 episodes, 1977)
• 
  Patrick Ward

   Const. Peter Fleming (5 episodes, 1977)
• 
  Roger Ward

   Bailey (2 episodes, 1977)
• 
  Vernon Weaver

   Fred Hewitt (2 episodes, 1977)
• 
  Tim Connor

   Lenny St James (2 episodes, 1977)
• 
  Sue-Ellen Hammill

   Lisa (2 episodes, 1977)
• 
  John Orcsik

  Det. Mike Georgiou
• 
  Gil Tucker

   Const. Roy Baker (2 episodes, 1978-1983)
• 
  Jo-Anne Moore

  96 episodes, 1977-1979