Guest Stars David Whiteley as Sergeant Bill Hobart Ling Cooper Tang as Mei Lin Blake Katya Jones as Robyn Dawson Damien Richardson as Terence Noonan Helen Morse as Agnes Clasby Shanyn Asmar as Ada McCrae Mick Corrigan as Alexander Martin David Ross Paterson as Bradley Tennant Chris Bidlo as Diederik Bronkhorst Chris Pace as Shane Heywood