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 Montel B. Williams Guest Star Gregory Itzin Guest Star Guy Garner Guest Star John Prosky Guest Star Tico Wells Guest Star Mike Jolly Guest Star Nick Meaney Guest Star Kevin Fry Guest Star Monique Mannen Guest Star Brian Groh Guest Star Craig Barnett Guest Star Sharon Madden Guest Star Matt Sigloch Guest Star Lindsay Kough Guest Star Donald P. Bellisario Executive Producer Tony Wharmby Director Paul Levine Writer