Simon Amstell
Narrator
Linda Bassett
Dr Yasmine Vondenburg
Martin Freeman
Jeff
Eileen Atkins
Dorothy
Joanna Lumley
Herself (voice)
Lindsay Duncan
Maude
Alex Lawther
Volunteer: Joey
Gemma Jones
Davina
John Macmillan
Troye King Jones
Claire Keelan
Lindsay Graber
James Smith
Graham Watkins
Samantha Spiro
Edith Paper
Martin Sims
Prof. Charles Grandage
Simon Chandler
Barnaby Jones
