Claire Skinner Dr. Angela Donne Actor Antonia Bernath Charlotte Arc Actor Isabella Calthorpe Rosalind Gaudain Actor Arnab Chanda Raj Purl Actor Paul Hunter Dr. Limus Cooper Actor Michael Higgs Dr. Gabriel Lloyd Actor Elen Rhys Maddie Talbot Actor Mark Wood Angus Fergus Actor Reggie Yates Theo Mackenzie Actor Tom Hughes Jonty Millington Actor Christian Cooke Dorian Gaudain Actor Liam Bergin Rupert Actor Rod Arthur Pete Dobkin Actor Tara Ward American Voice Actor Charles Dance Actor Saif Alfalasi Actor Holly Goss Actor Mark Aiken Actor Anthony Hoskyns Actor David Oakes Actor Stephen Woolfenden Director Colin Teague Director Declan O'Dwyer Director Robin French Writer Ian Buchan Writer Kieron Quirke Writer Ash Atalla Executive Producer