Guest Stars Lois Chimimba as Tara Kierly Bobby Rainsbury as Cronin Cristian Ortega as Anderton Martin Compston as Chief Petty Officer Craig Burke Anita Vettesse as Petty Officer Jackie Hamilton Tom Gill as Chief Petty Officer Adams Reuben Joseph as Porter Therese Bradley as Laura Michaels Parth Thakerar as Jay Kohli Dan Li as Hennessy Angelique Fernandez as Admiral Scott Jordan McCurrach as Signals Operations Fode Simbo as Abiola Susannah Doyle as Secretary of State Sam Redford as Peter Ingles