Générique complet
The Ugly Duckling
Bernard Bresslaw
Henry Jekyll / Teddy Hyde
Reginald Beckwith
Reginald
Jon Pertwee
Victor Jekyll
Maudie Edwards
Henrietta Jekyll
JM
Jean Muir
Snout
Norma Marla
Angel
Richard Wattis
Barclay
Jess Conrad
Bimbo
SD
Shelagh Dey
Miss Angers
EJ
Elwyn Brook-Jones
Dandy
Michael Ripper
Fish
David Lodge
Peewee
Harold Goodwin
Benny
KS
Keith Smith
Figures
Michael Ward
Mark Pasco
John Harvey
Sergeant Barnes
JD
Jean Driant
M. Blum
VM
Verne Morgan
Barman
Alexander Doré
Shop Customer
GP
Geremy Phillips
Tiger
MW
Mary Wilson
Lizzie
Robert Desmond
Dizzy
HD
Heather Downham
Model
Roger Avon
Reporter
Cyril Chamberlain
Police Sergeant
Lucy Griffiths
Cellist (uncredited)
Reginald Marsh
Reporter
NT
Nicholas Tanner
Commissionaire
Ian Wilson
Small Man
