Guest Stars Jessica Camacho as Petty Officer Pilar Cortez Michael Ng as Sonarman Cameron Pitts David Rees Snell as Petty Officer Barry Hopper Will Rothhaar as Petty Officer Josh Brannan Bruce Davison as Admiral Arthur Shepard Omid Abtahi as Nigel Matt Gerald as Gil Langston Max Adler as Stern Co Starring Daniel Bess as Lt. Chris Cahill Darri Ingolfsson as Robert Mitchell Jason Quinn as Seaman Jones Kasim Saul as Seaman Lawrence Isaac Gilmore as Fisher Mary Gutzi as Dodds Jodi Jarvis as Abigail Kamakani De Dely as Armed Marine Robert Egbert as Weapons Officer