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 Nanci Chambers Guest Star Randy Vasquez Guest Star Chuck Carrington Guest Star Michael Bellisario Guest Star William Katt Guest Star Paul Collins Guest Star Michael Spound Guest Star Richard Tanner Guest Star Susan Enriquez Guest Star Marcelo Tubert Guest Star Adoni Maropis Guest Star Robert Pine Guest Star Ramsey Malouky Guest Star Kimble Jemison Guest Star Kevin Kendrick Guest Star Sam Witwer Guest Star Jake Zim Guest Star Donald P. Bellisario Executive Producer Charles Floyd Johnson Executive Producer Stephen Zito Executive Producer Hugo Cortina Director