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 Steven Flynn Guest Star Harrison Page Guest Star Travis Fine Guest Star David Groh Guest Star Rutanya Alda Guest Star Quinn Duffy Guest Star John Eric Bentley Guest Star Efrain Figueroa Guest Star Chuck Carrington Guest Star Freda Foh Shen Guest Star Oliver North Guest Star Donald P. Bellisario Executive Producer Tony Wharmby Director R. Scott Gemmill Writer