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 Karri Turner Ensign, Lt. j.g. Harriet Sims Guest Star Randy Vasquez Guest Star Chuck Carrington Guest Star Trevor Goddard Guest Star Cindy Ambuehl Guest Star Harrison Page Guest Star Peter Jason Guest Star James Patrick Stuart Guest Star Michael Whaley Actor Gerald McRaney Guest Star Tom McCafferty Guest Star Nunei Harrington Guest Star Ron Sanchez Guest Star Jim Wise Guest Star Jonathan Breck Guest Star Andrew Caple-Shaw Guest Star Ryan Johnson Guest Star Donald P. Bellisario Executive Producer Charles Floyd Johnson Executive Producer Stephen Zito Executive Producer Mark Horowitz Director Ed Zuckerman Writer