Casts
Carol Marsh
as Susan Graham
David Tomlinson
as Nick Martin
Mervyn Johns
as Ernest Bennett
Richard Hearne
as Professor Pastry
Terry-Thomas
as Himself
Jimmy Edwards
as Dr. Edwards
Peter Hammond
as Spencer Stone
Jon Pertwee
as Headwaiter
Wilfrid Hyde-White
as Dr. B. Jekyll
Peter Haddon
as Major Basil Beagle
