Guest Stars Niamh Walsh as Young Ethel Cripps Bill Paterson as John Hathaway Charles Dance as Roderick Burgess Laurie Kynaston as Alex Burgess Co Starring Ansu Kabia as Ruthven Sykes Corey Mylchreest as Adonis Douglas Russell as Guard #1 (Hugo) Martin Bishop as Neurologist Benjamin Evan Ainsworth as Alex Burgess (6) Jordan Long as Guard #10 (Fred) Momo Yeung as Disciple #6 Christopher Colquhoun as Paul McGuire (62) Madeleine Wilshire as Pushy Person #2 Siôn Alun Davies as Ozzie Amy Rockson as Margaret Kincaid Eugene Rangayah as Disciple #3 Gill Jordan as Disciple #4 Robert Grose as Disciple #1 Gus Gordon as Paul McGuire (18-42) Tracy Collier as Disciple #2 James Chuma Mbanefo as Guard #5 (Rogers) Simon Bundock as Alex Burgess Double (6) Will Atiomo as Guard #4 (Maurice) Andre Bullock as Pushy Person #3 Clare Buckingham as Sleep-Deprived Patient Roger Ajogbe as James Kincaid Jennifer Adab as Disciple #5 Stacy Abalogun as Nurse Edmunds Nicola Achilleas as Pushy Person #4 Louis Martin as Guard #3 (Noel) Alistair Bourne as Pushy Person #1 Benedick Blythe as Alex Burgess (70) Naomi Cooper-Davis as Guard #11 (Ernie) Ione Brown as Sleepwalking Patient Johnny Palmiero as Guard #2 (Simon) Keiran Flynn as Taxi Driver