Guest Stars Mark Gatiss as Frank Lydia West as Lucy Lyndsey Marshal as Bloxham Anthony Kaye as Andy Anna Swan as Andrea Chanel Cresswell as Kathleen Phil Dunster as Quincey Sofia Oxenham as Sam Sarah Niles as Meg Olivia Talbot as Emily Corinna Wilson as Amanda Matthew Beard as Jack Cat White as Beth Paul Brennen as Commander Irving Kiran Shah as Little Boy Polly Kemp as Nurse Millicent Wong as Alice John McCrea as Zev
