David James Elliott Lt., Lt. Cmdr. Harmon "Harm" Rabb, Jr. Actor Catherine Bell Maj., Lt. Col. Sarah "Mac" MacKenzie Actor Patrick Laborteaux Lt. j.g., Lt. Bud Roberts Actor John M. Jackson Actor Scott Lawrence Cmdr. Sturgis Turner Guest Star Karri Turner Ensign, Lt. j.g. Harriet Sims Guest Star Chuck Carrington Guest Star Anne-Marie Johnson Guest Star Nanci Chambers Guest Star Scott Paulin Guest Star Brian McNamara Guest Star Lisa Ann Hadley Guest Star David Batiste Guest Star Richard Holden Guest Star Tim Griffen Guest Star Donald P. Bellisario Executive Producer Charles Floyd Johnson Executive Producer Stephen Zito Executive Producer Mark Horowitz Executive Producer Rod Hardy Director Doc Johnson Writer