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 Mercedes Colon Guest Star Leo Rossi Guest Star Tom Schanley Guest Star Michael Bellisario Guest Star Anthony Montgomery Guest Star Mark Hutter Guest Star Sharon Farrell Guest Star Harrison Page Guest Star Rif Hutton Guest Star Christopher Dean Johnston Guest Star Trevor Goddard Guest Star Chuck Carrington Guest Star Donald P. Bellisario Executive Producer Charles Floyd Johnson Executive Producer Stephen Zito Executive Producer David Zabel Writer Hugo Cortina Director