Guest Stars Orla Russell as Poppy Lois Chimimba as Tara Kierly Bobby Rainsbury as Cronin Cristian Ortega as Anderton Anita Vettesse as Petty Officer Jackie Hamilton Tom Gill as Chief Petty Officer Adams Aisha Toussaint as Cat Oliver Lansley as Mark Hill Jim Sturgeon as Iain Thoren Ferguson as Bretton Thierry Mabonga as Aircrew Officer Peter Guiney as Trawlerman Matt Costello as Skipper Rian Gordon as Wilson Xavier Lake as Trawlerman