Guest Stars Che Walker as Zac Pete Postlethwaite as Hank Kulvinder Ghir as Ahmet Jan Chappell as Dr. Potter Seamus O'Neill as Stefan Brana Bajic as Amela Sarah Berger as Gemma Fox James Blackwell as 2nd Officer Boris Boscovic as Kemal ) Brian Stirner as Nigel Fox Sara Sugarman as Kath Terry Melia as 1st Officer