Guest Stars Steve Bisley as Commander Steve Marshall Morgan O'Neill as Lieutenant Darryl Smith Chris Stollery as Federal Agent Greg Murphy Sibylla Budd as Dr. Ursula Morrell Damien Garvey as Carl Davies Tye Harper as Seaman John Jaffah Steve Nation as Sam Murray Ben Clemments as Helmsman Haven Tso as FFV Fisherman Melanie Munt as Dr. Lisa Holmes