• 
  Richard Dean Anderson

  Simon Adams
• 
  Sela Ward

   Hilary Adams (22 episodes, 1983-1984)
• 
  Maud Adams

   Maggie Farrell (22 episodes, 1983-1984)
• 
  Susan Dey

  Celia Mallory Warren
• 
  Jill St. John

   Deanna Kincaid (19 episodes, 1983-1984)
• 
  Robert Vaughn

  Harlan Adams
• 
  Andrew Stevens

  Lt. Glenn Matthews
• 
  Robert Loggia

  Adm. Yuri Bukharin

• 
  Michael Brandon

  David Marquette
• 
  Michael Carven

  Lt. Alexi Gorichenko
• 
  Doran Clark

   Ensign Leslie Mallory (22 episodes, 1983-1984)
• 
  Darryl Cooksey

  Scott Farrell
• 
  Stephanie Dunnam

  Kay Mallory Matthews
• 
  Charles Frank

  Lt. Cmdr. Jack Warren
• 
  Patrick O'Neal

  Harlan Adams

• 
  Dennis Weaver

  Rear Adm. Thomas Mallory