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 Steven Culp Guest Star Victor Love Guest Star Beata Pozniak Guest Star Leon Russom Guest Star Chuck Carrington Guest Star Claudette Nevins Guest Star Kiva Lawrence Guest Star Jordan Murphy Guest Star Radmar Agana Jao Guest Star James Encinas Guest Star Lillian Lehman Guest Star Guy Garner Guest Star Rick Cramer Guest Star Susan V. Hansen Guest Star Mark Costello Guest Star Donald P. Bellisario Executive Producer Raymond Austin Director Peyton Webb Writer