On screen
Cast
44 credited performers
Jenna Coleman
Ember
Archie Renaux
Hitch
Laura Marcus
Caitlin
Bo Bragason
Amy
Amelia Bullmore
Sylvia
Ruby Stokes
Hannah
Tom Glynn-Carney
Malachy
Weruche Opia
Riz
Matthew McNulty
Arj
David Ajala
Casey
Shannon Watson
Miranda
Miya Ocego
Jules
Nina Barker-Francis
Chloe
Clare Calbraith
Joan
Ralph Ineson
Detective Inspector Morgan
Rick Warden
Martin Roberts
Dominic Coleman
Brad
Arthur Hughes
Liam
Georgina Rich
Sheena
Connie Jenkins-Greig
Young Ember
Eleanor Nawal
Lawley
Peter Sullivan
Blake
Artwork unavailable
Niamh Blackshaw
Rosie
Philip Hill-Pearson
Rob
Natalie Gumede
Nina
Nandi Bhebhe
Nurse
Adam Astill
Mr Ryan
Johanne Murdock
Mrs. Cawdor
Elliot Cowan
Russell
Amer Nazir
Ali Mohammed
Ruaridh Mollica
Troy
Joshua Gannon
Young Arj
Ryan Dean
Joe
Ross Thompson
Ellis
Artwork unavailable
Ross Thompson
Ellis
Anna Wilson-Jones
Imogen
Philip Whitchurch
Superintendent Needham
Artwork unavailable
Danny Ryder
Gary
Lorna Nickson Brown
Kit / Present Caitlin
Jonny Fines
Present Joe
Artwork unavailable
Effy Buckles Jones
Young Hannah
Lila Lasso
Conference Reporter
Artwork unavailable
Jean-Pascal Heynemand
Lab assistant
Artwork unavailable
Kelsea Jo Brooke
Diane (uncredited)