Main Characters Rob Morrison 2 main appearances Samantha 'Sam' Morrison 2 main appearances Professor Leonard Morrison 2 main appearances Patricia Nash 2 main appearances Deputy Prime Minister Campbell 2 main appearances Keith Hopkins 2 main appearances Neil Stafford 2 main appearances Arthur Moyes 2 main appearances Zak 2 main appearances Army Liaison Officer Richardson 2 main appearances Penny 2 main appearances Major General Ashcroft 2 main appearances
Recurring Guest Characters Wyatt 2 guest appearances Nikki Fuller 2 guest appearances Johnson 2 guest appearances Mel 2 guest appearances Bill 2 guest appearances Frank 2 guest appearances Commander Bryant 2 guest appearances Christine 2 guest appearances Claire 2 guest appearances