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
Michael Fenton Stevens
Peter Smithball
Jumayn Hunter
Robert
Simon Fisher-Becker
Kevin
Collette Cooper
Georgina
Andy Rush
Mike
Roy Sampson
Leon
George Keywood
Larry
Vanessa Earl
Lisa Thomas
Scott Chambers
Kyle
Earth-G
Fred
Will Rastall
Bertie
James Bloor
Vegan
Josephine Butler
Teacher
Matthew Beard
Jeremy (voice)
Karl Theobald
Daddy (voice)
Margaret Clunie
Model
Mawaan Rizwan
Freddy Javashankar
Robert Cawsey
Confused Man
Natalie Jones
Confused Woman
Kirsty Wark
Herself
Lorraine Kelly
Herself
Vanessa Feltz
Herself
Clive Myrie
Himself
Racheal Ofori
Patricia
Jamie Adenuga
Himself