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 Nanci Chambers Guest Star Chuck Carrington Guest Star Scott Lawrence Cmdr. Sturgis Turner Guest Star Karri Turner Ensign, Lt. j.g. Harriet Sims Guest Star Harrison Page Guest Star Zoe McLellan Petty Officer Jennifer Coates Guest Star Paul Collins Guest Star John D'Aquino Guest Star Russell Richardson Guest Star Sasha Mitchell Guest Star Susan Pari Guest Star Cade Courtly Guest Star Michelle Ann Johnson Guest Star Christopher Comes Guest Star Steven J. Levy Guest Star Jake Milkovich Guest Star Donald P. Bellisario Executive Producer Charles Floyd Johnson Executive Producer Stephen Zito Executive Producer Mark Horowitz Executive Producer Oz Scott Director Paul J. Levine Writer