Guest Stars Morgan O'Neill as Lieutenant Darryl Smith Sibylla Budd as Dr. Ursula Morrell Steve Bisley as CMDR Steve Marshall Mick Roughan as Eco Militant #2 Leighton Cardno as David Thompson Fernando Henriques as Longline Captain Valentino del Toro as Mothership Captain Kate Alstergren as Tenant Shane Lee as Eco Militant #1 António Soares as Longline Crew #1 Michael Cook as Longline Crew #2 Ben Clements as Helmsman #1 Shea Adams as Eco Militant Player Yasca Sinigaglia as Eco Militant Bandit Darko Tuscan as Eco Militant #3 Paul Phillips as RHIB Driver