David James Elliott Lt., Lt. Cmdr. Harmon "Harm" Rabb, Jr. Actor Catherine Bell Maj., Lt. Col. Sarah "Mac" MacKenzie Actor John M. Jackson Actor Patrick Laborteaux Lt. j.g., Lt. Bud Roberts Actor Karri Turner Ensign, Lt. j.g. Harriet Sims Guest Star Cindy Ambuehl Guest Star Trevor Goddard Guest Star Mark Metcalf Guest Star Randy Vasquez Guest Star Nanci Chambers Guest Star Rif Hutton Guest Star Cynthia Sikes Guest Star Sibel Galindez Guest Star Corbin Bernsen Guest Star Chuck Carrington Guest Star Harrison Page Guest Star Paul Collins Guest Star A.J. Tannen Guest Star Mario Schugel Guest Star Anne-Marie Johnson Guest Star Donald P. Bellisario Executive Producer, Director, Writer Charles Floyd Johnson Executive Producer Stephen Zito Executive Producer Terrence O'Hara Director Jeannot Szwarc Director Alan J. Levi Director Tony Wharmby Director Greg Beeman Director Ian Toynton Director Mark Horowitz Director Arthur W. Forney Director John Schulian Writer Larry Moskowitz Writer Paul Levine Writer Ed Zuckerman Writer Dana Coen Writer Hugo Cortina Director