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 Trevor Goddard Guest Star Mark Metcalf Guest Star Randy Vasquez Guest Star Lochlyn Munro Guest Star Sibel Galindez Guest Star Dylan Neal Guest Star Chuck Carrington Guest Star Harrison Page Guest Star A.J. Tannen Guest Star Mario Schugel Guest Star Kurt Cacerres Guest Star Christopher Davis Guest Star Christian Payne Guest Star Jack Shearer Guest Star Josh Carmichael Guest Star Beau Baxter Guest Star Adam Gregor Guest Star Donald P. Bellisario Executive Producer Charles Floyd Johnson Executive Producer Stephen Zito Executive Producer Alan J. Levi Director John Schulian Writer