Générique complet
Whatever Happened to Harold Smith?
Tom Courtenay
Harold Smith
Michael Legge
Vincent Smith
Laura Fraser
Joanna Robinson
Lulu
Irene Smith
Stephen Fry
Dr. Peter Robinson
CR
Charlotte Roberts
Lucy Robinson
Amanda Root
Margaret Robinson
David Thewlis
Nesbit
Charlie Hunnam
Daz
James Corden
Walter
Jonah Russell
Policeman
Rosemary Leach
Harold's Mother
Mark Williams
Roland Thornton
Jeremy Child
Doctor Bannister
Richenda Carey
Mary Blackcottage
Uri Geller
Himself
Matthew Rhys
Ray Smith
