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 Harrison Page Guest Star Chuck Carrington Guest Star Rif Hutton Guest Star Sal Landi Guest Star David Barry Gray Guest Star Brian McGovern Guest Star Bobbie Eakes Guest Star Kevin Fry Guest Star Craig Watkinson Guest Star Kenneth Phillips Guest Star Chuck Walczak Guest Star Joey Spillers Guest Star Luke Springfield Guest Star Michael Hagerty Guest Star Andy Umberger Guest Star Jonathan T. Floyd Guest Star John Allsopp Guest Star Molly Jane Levine Zuckerman Guest Star Caron Strong Guest Star Jennifer Copping Guest Star Donald P. Bellisario Executive Producer Charles Floyd Johnson Executive Producer Stephen Zito Executive Producer Jerry London Director Mark Saraceni Writer