Guest Stars Daniel Gillies as Royal Marine Major Peter Malloy Tracy Middendorf as Tara Bick Kristen Ariza as CIA Operations Officer Loretta Tennison Peter Asle Holden as Vector Control Worker Jamie Elman as Realtor John T. Woods as Navy Chief Petty Officer Jason Crosby Co Starring Chris Jarvis as British Royal Marine Engineer Ron Bottitta as British Royal Marine Captain William Jamison