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 Bruce Weitz Guest Star Michael Brandon Guest Star Sam Gifaldi Guest Star Ellen Geer Guest Star Callan White Guest Star Chuck Carrington Guest Star John Furey Guest Star Greg Travis Guest Star John Vargas Guest Star Mary Cadorette Guest Star Mitch Gibney Guest Star Bruno Marcotulli Guest Star Clay Greenbush Guest Star Adam Clark Guest Star Darren Gray Ward Guest Star Simon Billig Guest Star James Emery Guest Star Rod Roeser Guest Star Rainbow Borden Guest Star Michael Yama Guest Star Audrey Williams Guest Star Donald P. Bellisario Executive Producer Michael Schultz Director Jack Orman Writer