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 Reuben Joseph as Porter Therese Bradley as Laura Michaels Aisha Toussaint as Cat Oliver Lansley as Mark Hill Dan Li as Hennessy Nebli Basani as Digital Operations Officer Fode Simbo as Abiola Robin Laing as Miller Anne Kidd as Morag Torrens Lisa Livingstone as Arena Office Manager Michael MacKenzie as Gordon Torrens Gerry Lynch as Peace Camper