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 Ben Murphy Guest Star W. K. Stratton Guest Star Harrison Page Guest Star Chick Vennera Guest Star Dana Sparks Guest Star Rif Hutton Guest Star Joe Unger Guest Star David L. Crowley Guest Star Trevor Goddard Guest Star Joe Lando Guest Star Chuck Carrington Guest Star Donald P. Bellisario Executive Producer Charles Floyd Johnson Executive Producer Stephen Zito Executive Producer Tony Wharmby Director Larry Moskowitz Writer