The show will star Sally Ann Triplett as Martha Watson, Dan Burton as Phil Davis, Matthew Jeans as Bob Wallace, Jessica Daley as Betty Haynes, Emily Langham as Judy Haynes and Duncan Smith as General Waverly.

Completing the cast are Phillip Bertioli, Imogen Bowtell, Isabel Canning, Freddie Clements, Meg Darcy, Adam Denman, Beth Devine, Kirsty Fuller, Ashton Harkness, Sam Holden, Matt Holland, Samuel John-Humphreys, Aoife Kenny, Ella Kemp, Joshua Lovell, Martin McCarthy, Ben Munday, Oliver Ramsdale, Kayleigh Thadani and Kraig Thornber.